CatalogPHP2Shell
PHP2Shell (CVE-2026-109618 / CVE-2026-109619)
Shared component · php2shell
Two PHP core remote code execution bugs: CVE-2026-109618 (RCE via OOM corruption) and CVE-2026-109619 (RCE via stale global state). PHP scores both CVSS 4.0 9.2. Exploitation attempts are widely reported; no authoritative source confirms a successful in-the-wild compromise as of 2026-10-23. Neither CVE is in CISA KEV (catalog 2026.10.21).
- Aliases
- CVE-2026-109618, CVE-2026-109619, PHP2Shell, php2shell
- Published
- Updated
What the bug is
PHP2Shell (also php2shell) is a public nickname from Wiz's exploit-script name; CISA, AWS, Ubuntu, Splunk and Cisco use it. PHP's own advisories do not. They name CVE-2026-109618 “RCE via OOM corruption” (GHSA-w8hw-w9fx-j79w) and CVE-2026-109619 “RCE via stale global state” (GHSA-6wmf-4rv5-p3rp), published 21 Oct 2026. This page follows PHP's GHSA CVE-to-bug mapping, not Wiz's table.
CVE-2026-109618 (CNA): PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE).
CVE-2026-109619 (CNA): PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subsequent requests may read or branch on this stale state before it is fully initialized. Multiple strategies can trigger this condition and produce remote code execution (RCE). The CNA record also lists CAPEC-234.
The bugs sit in PHP core (Zend engine / SAPI request lifecycle; multipart/RFC1867 body parsing, session upload progress, error handling). This page uses PHP's GHSA mapping: session upload-progress is under CVE-2026-109619 (stale global state); CVE-2026-109618 is described as $_POST/multipart OOM corruption. Wiz's public table files some of those techniques under the other CVE. Treated here as an open discrepancy, not a resolved fact.
PHP describes Apache mod_php as highest risk (confirmed app-independent RCE before application code). PHP-FPM, php-cgi, FrankenPHP (likely susceptible for CVE-2026-109618 by source analysis), and LiteSpeed/LSAPI (conditional/unvalidated) are also discussed in the advisories, with varying confirmation. This is not an exploit recipe.
Fixed upstream branches announced 21 Oct 2026: 8.5.12, 8.4.27, 8.3.36, 8.2.35 (8.2 EOL 31 Dec 2026). The php.net ChangeLog lists those four releases as 22 Oct 2026. This page uses the 21 Oct news/GitHub date and records the ChangeLog difference as a note. PHP 8.1 and older no longer get updates from the PHP project; the security team provided minimal source backports for 7.4, 8.0 and 8.1 (no binaries).
Attack path
- RequestA network request reaches PHP (Zend engine / SAPI request lifecycle).
- OOM or stale stateCVE-2026-109618: an OOM abort can leave request memory uninitialized. CVE-2026-109619: global state may still refer to freed request memory.
- Memory corruptionLater request cleanup, or a later request on the same worker, may read or branch on that memory.
- Code execPHP's CNA records say this condition can lead to remote code execution. Conceptual impact class only.
High-level only. Not a reproduction guide.
Exploitation status
CISA KEV
Not in CISA KEV as of .
Last verified 23 Oct 2026, 11:08 SGT. CISA KEV catalog 2026.10.21 (released 2026-10-21T14:04:39Z, 1,754 entries). Neither CVE-2026-109618 nor CVE-2026-109619 is listed.
First seen
Seen . Source: AWS Security Blog / MadPot
Amazon's MadPot honeypots logged an exploitation attempt from anonymising infrastructure while the bugs were still under embargo; Amazon says it is unclear whether such attempts would succeed.
What defenders should do today
- 01
Patch PHP
nowPatch to 8.5.12, 8.4.27, 8.3.36, or 8.2.35. PHP states updating is the only complete fix. Interim mitigations below are not complete.
- 02
End-of-life PHP, or you cannot patch
nowCISA tells organisations on PHP 8.1 or earlier, or that cannot update, to take PHP systems offline. PHP 8.1 and older no longer get updates from the PHP project (source backports for 7.4/8.0/8.1 exist; see the open EOL note).
- 03
Find PHP you do not manage directly
nowLook for PHP in appliances, NAS, hosting panels, containers, and CMS hosts. Check the downstream matrix below for your vendors. Treat “no statement yet” as unknown, not safe.
- 04
Restrict appliance management interfaces
nowUntil your vendor ships a fix, restrict management interfaces to trusted admin networks. Several appliance vendors in the downstream matrix give this as the interim control.
- 05
Interim PHP mitigations are a bridge only
soonPHP lists, as incomplete bridges: memory_limit=-1 enforced administratively (CVE-2026-109618); low post_max_size; frontend limits on decoded size/parts/headers/nesting; do not use RLIMIT_AS/RLIMIT_DATA; session.upload_progress.enabled=0 and restart workers (CVE-2026-109619 session path); PHP 8.5 fatal_error_backtraces=0 (CVE-2026-109619 backtrace path); remove per-request INI that emits diagnostics; fix attacker-reachable fatal errors/timeouts.
- 06
Turn on WAF / IPS PHP2Shell signatures
soonEnable your WAF or IPS vendor's PHP2Shell signatures. Signature IDs stay in Detection.
- 07
Watch for vendor fixes and retractions
monitorSubscribe to your vendors' PSIRTs and to this page's feed.
- 08
Use your distro's PHP packages
nowOn Ubuntu and other Linux distributions, apply the distro PHP packages, not a one-off upstream build, unless your vendor says otherwise.
Detection pointers
WAF / IPS events
| Signal | Log source | What to look for |
|---|---|---|
| Imperva WAF telemetry (attempts, not confirmed successes) | WAF / IPS event logs | Imperva reported 482,342 requests, 122,311 sessions and 21,998 sites across 103 countries in the first 24h, and says these do not represent confirmed successful exploitation. |
| AWS MadPot / AWS WAF | WAF / IPS event logs | AWS MadPot saw an attempt on 17 Oct 2026 from 103.216.220.92 (anonymization network) and further attempts 21 Oct 02:00-08:00 UTC. AWS also published WAF mitigation guidance. Unclear whether attempts would have succeeded. |
| Sophos telemetry of failed attempts | WAF / IPS event logs | After retraction, Sophos CTU: telemetry shows scanning and a small number of failed exploitation attempts; no evidence of a successful compromise. Mirai “Potassium” payload blocked. |
| watchTowr Attacker Eye honeypots | WAF / IPS event logs | watchTowr says its Attacker Eye honeypots observed exploitation from 21 Oct. That is watchTowr's honeypot wording; see the open note on the SecurityWeek-quoted staff email. |
Web / reverse-proxy access logs
| Signal | Log source | What to look for |
|---|---|---|
| PHP frontend size / multipart limits | Web access logs / reverse-proxy logs | PHP's incomplete mitigations include low post_max_size and frontend limits on decoded size, parts, headers, and nesting. Review reverse-proxy and web-server rejects of oversized or highly nested POSTs to PHP. Not a complete detector and not an exploit recipe. |
Vendor signatures
| Signal | Log source | What to look for |
|---|---|---|
| Cisco Snort rules | Snort / Cisco IPS event logs | Cisco advisory lists Snort rules 67359/67360. Cisco PSIRT is not aware of malicious use. |
| F5 WAF signatures | F5 BIG-IP / Advanced WAF event logs | F5 K000163821: WAF signatures 200103697 and 200204115 for CVE-2026-109618, 200204113 for CVE-2026-109619. |
| Palo Alto Networks Threat Prevention IDs | Palo Alto Networks threat logs (Threat Prevention / NGFW) | PAN and Unit 42 cite Threat IDs 543004 (from 20 Oct 22:21 PT per Unit 42) and 97622-97625. Use as vendor signatures, not as confirmed-compromise proof. |
Adaptive impact
Products that share PHP core (Zend engine / SAPI request lifecycle)
CloudLinux, Ubuntu and Plesk backport fixes while keeping older version strings, so version-only scanners may report false positives.
PHP upstream5
- Affected
PHP 8.1 and older (EOL; 7.4/8.0/8.1 source backports)
PHP Group
Fixed version / ETA
Minimal source backports for 7.4/8.0/8.1 (no binaries). AWS: no fix for CVE-2026-109618 on EOL. Unresolved.
Advisory
21 Oct 2026
SourceNotes
Affected: PHP 8.1 and older no longer get updates from the PHP project. CVE record does not enumerate pre-8.2.. PHP provided minimal source backports for 7.4, 8.0 and 8.1 (branches PHP-7.4/8.0/8.1-CVE-2026-109618-109619). No binaries. See open note vs AWS bulletin 2026-143-AWS.
- Affected
PHP 8.2
PHP Group
Fixed version / ETA
8.2.35
Advisory
21 Oct 2026
SourceNotes
Affected: <8.2.35 affected; EOL 31 Dec 2026. Both GHSAs: affected <8.2.35; patched 8.2.35. Branch EOL 31 Dec 2026.
- Affected
PHP 8.3
PHP Group
Fixed version / ETA
8.3.36
Advisory
21 Oct 2026
SourceNotes
Affected: <8.3.36 affected. Both GHSAs: affected <8.3.36; patched 8.3.36.
- Affected
PHP 8.4
PHP Group
Fixed version / ETA
8.4.27
Advisory
21 Oct 2026
SourceNotes
Affected: <8.4.27 affected. Both GHSAs: affected <8.4.27; patched 8.4.27.
- Affected
PHP 8.5
PHP Group
Fixed version / ETA
8.5.12
Advisory
21 Oct 2026
SourceNotes
Affected: <8.5.12 affected. Patched 8.5.12. php.net news 21 Oct 2026; ChangeLog lists 22 Oct 2026.
Linux distributions13
- Affected
AlmaLinux 8, 9, 10 (all PHP streams)
AlmaLinux
Fixed version / ETA
Patched packages for every stream; e.g. AlmaLinux 10 php 8.3.36-1.el10_2 (ALSA-2026:87070)
Advisory
21 Oct 2026
SourceNotes
AlmaLinux 8, 9, and 10 all ship affected PHP versions. Patched packages for every stream in production repos.
- Affected
php83, php84, php85 (edge, 3.24 community)
Alpine Linux
Fixed version / ETA
php83 8.3.36-r0; php84 8.4.27-r0; php85 8.5.12-r0 (edge and 3.24-community)
Advisory
Checked 23 Oct 2026
SourceNotes
Fixed (Alpine security tracker).
No date shown on the tracker page. Older Alpine branches (3.21-3.23) and php82 were not confirmed from the tracker.
- Affected
AL2023 php8.2-8.5; AL2 PHP 8.2 Extras; AL2027 Preview
Amazon Linux
Fixed version / ETA
AL2023: ALAS2023-2026-3301 to 3304; AL2 php8.2 Extra: ALAS2PHP8.2-2026-015; AL2027 Preview: ALAS2027-2026-243. No fix planned for AL2 core php and AL2023 php8.1.
Advisory
21 Oct 2026
SourceNotes
Fixed for AL2023 php8.2/8.3/8.4/8.5, AL2 php8.2 Extra and AL2027 Preview; No Fix Planned for AL2 core php and AL2023 php8.1.
Separate from the AWS services bulletin. No Fix Planned is a vendor status, not not affected.
- Affected
php8.4 (trixie), php8.2 (bookworm)
Debian
Fixed version / ETA
php8.4 8.4.27-1~deb13u1 (trixie); php8.2 8.2.35-1~deb12u1 (bookworm). Forky still listed vulnerable.
Advisory
21 Oct 2026
SourceNotes
Fixed in trixie-security and bookworm-security; forky still listed vulnerable; sid fixed for php8.4.
DSA-6574-1, DLA-4848-1. Tracker also lists php8.2 (unstable) as unfixed.
- Affected
php (Fedora 43, Fedora 44)
Fedora
Fixed version / ETA
F43: php-8.4.27-2.fc43 (FEDORA-2026-d5f8446449); F44: php-8.5.12-1.fc44 (FEDORA-2026-a9eba4bbc3)
Advisory
21 Oct 2026 (stable 22 Oct 2026)
SourceNotes
Security update pushed to stable (severity high).
- Affected
php82/php83/php84/php85 ports
FreeBSD
Fixed version / ETA
8.2.35 / 8.3.36 / 8.4.27 / 8.5.12
Advisory
21 Oct 2026
SourceNotes
VuXML entry: affected below fixed versions.
- Affected
dev-lang/php
Gentoo
Fixed version / ETA
Upgrade to >= 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35 (GLSA 202610-02)
Advisory
21 Oct 2026
SourceNotes
Affected < 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35. There is no known workaround.
- Affected
Oracle Linux 10 php8.4
Oracle Linux
Fixed version / ETA
php8.4-8.4.27-1.el10_2 (ELSA-2026-87071)
Advisory
21 Oct 2026
SourceNotes
Fixed (php8.4 security update).
- Affected
RHEL 10, 9, 8, 7; OpenShift Dev Spaces 3
Red Hat
Fixed version / ETA
RHEL 10: php 8.3.36-1.el10_2 (RHSA-2026:87070), php8.4 8.4.27 (RHSA-2026:87071); RHEL 8 php:7.4 (RHSA-2026:87080); further RHSAs for RHEL 8/9. Additional updates in progress.
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
RHEL 7-10 directly affected (RHEL 7: only CVE-2026-109619; the vulnerable code required to exploit CVE-2026-109618 is not present). OpenShift Dev Spaces 3 affected at Moderate. Bulletin status Ongoing, impact Important.
RHSB-2026-013. Red Hat rates both Important (CVSS 3.1 8.1). Some updates are already available, with additional updates in progress.
- Affected
Rocky Linux 10 php
Rocky Linux
Fixed version / ETA
php 8.3.36 (RLSA-2026:87070)
Advisory
22 Oct 2026
SourceNotes
Fixed (Important: php security update).
- Affected
php8 on SLES 15 SP6/SP7, SLES for SAP, openSUSE Leap 15.6
SUSE
Fixed version / ETA
php8 8.2.35 (SUSE-SU-2026:4843-1, 15 SP6 / Leap 15.6); php8 8.3.36 (SUSE-SU-2026:4844-1, 15 SP7). Other products still in progress.
Advisory
21 Oct 2026
SourceNotes
SUSE overall state Pending, rated important; fixed packages released for SLE 15 SP6 (8.2.35) and SP7 (8.3.36).
- Affected
Ubuntu 14.04-20.04 ESM PHP
Ubuntu
Fixed version / ETA
Fixed under ESM (see USN-8948-2 for per-release package versions)
Advisory
21 Oct 2026
SourceNotes
Fixed under ESM (USN-8948-2 follows USN-8948-1).
Ubuntu backports keep older version strings, so version-only scanners may report a false positive.
- Affected
Ubuntu PHP packages
Ubuntu
Fixed version / ETA
Fixes available (see advisory)
Advisory
Checked 23 Oct 2026
SourceNotes
Ubuntu published “PHP2Shell vulnerability: fixes available”. Shown date is not in the source pack; link only.
Ubuntu backports keep older version strings, so version-only scanners may report a false positive.
Hosting panels4
- Affected
alt-php, ea-php, native CloudLinux PHP, TuxCare ELS PHP
CloudLinux
Fixed version / ETA
alt-php82 8.2.35-1, alt-php83 8.3.36-1, alt-php84 8.4.27-1, alt-php85 8.5.12-1 (CL 8/9); earlier backports e.g. alt-php85 8.5.11-5, ea-php84 8.4.26-2.el8.cloudlinux.1
Advisory
23 Oct 2026
SourceNotes
Fixed packages in stable for alt-php and native PHP; alt-php/ea-php fixes are backports carrying the old version number.
CloudLinux backports keep older version strings, so version-only scanners may report a false positive. CLSA-2026:87070 dated 22 Oct 2026.
- Affected
cPanel & WHM, EasyApache 4 ea-php
cPanel
Fixed version / ETA
cPanel & WHM 11.110.0.153 / 11.134.0.66 / 11.136.0.50 / 11.138.0.18 (WP Squared 11.138.1.17); ea-php74 7.4.33-19 through ea-php85 8.5.12. Older than 7.4: TuxCare ELS.
Advisory
22 Oct 2026
SourceNotes
All shipped PHP versions are suspected to be vulnerable; updates released for ea-php74 and above.
- Affected
DirectAdmin CustomBuild PHP
DirectAdmin
Fixed version / ETA
PHP 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12; vendor patches for 7.4 / 8.0 / 8.1 (same version number). PHP 7.3-5.6 did not yet have a patch at the time. Needs da update + da build php.
Advisory
21 Oct 2026
SourceNotes
New DA build released to current and stable channels; PHP 8.2-8.5 bumped, patches added for 8.1, 8.0, 7.4; PHP versions 7.3 - 5.6 does not yet have a patch.
Staff forum post (DirectAdmin Announcements, administrator fln), not a formal advisory.
- Affected
PHP shipped with Plesk Obsidian (Linux, Windows) and Plesk sw-engine/plesk-engine
Plesk
Fixed version / ETA
PHP 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35; EOL 7.4.33, 8.0.30, 8.1.34 fixed in builds dated 21 Oct 2026 (Linux only); Plesk UI engine fixed in Obsidian 18.0.80 Update 11 and 18.0.81 Update 4
Advisory
22 Oct 2026
SourceNotes
All PHP versions shipped with Plesk are also affected; fixes available.
Plesk EOL builds keep the same version number and differ by build date, so version-only scanners may report a false positive. The panel's own management engine runs PHP and needed its own fix.
NAS & consumer devices6
- Under investigation
Nighthawk RAX28, RAX29, RAX30, RAXE290, RAXE300, CAX30
NETGEAR
Fixed version / ETA
No fixed firmware yet
Advisory
22 Oct 2026
SourceNotes
Only the Nighthawk models listed below were found to include PHP components and their actual impact is under review. PHP is LAN/WiFi-only management, not accessible from the Internet by default.
Severity MEDIUM. This advisory will be updated when fixed firmware versions are available.
- Vendor stated not affected
Other NETGEAR products and services
NETGEAR
Fixed version / ETA
Not applicable
Advisory
22 Oct 2026
SourceNotes
No other NETGEAR product or service is exposed to these vulnerabilities based on our assessment.
- Affected (multiple products), no fix yet
Multiple QNAP products
QNAP
Fixed version / ETA
No fix yet
Advisory
22 Oct 2026
SourceNotes
Multiple QNAP products are affected. QNAP is working on fixes, and updated versions will be released as they become available.
QSA-26-18. Interim guidance: keep NAS off the internet, use VPN, restrict management ports.
- Affected
DSM PHP packages, Mail Station, Synology Calendar
Synology
Fixed version / ETA
PHP 7.4.33-0131, 8.0.30-0122, 8.1.34-0120, 8.2.35-0171, 8.3.36-0051, 8.4.27-0051; Calendar 3.0.4-21435; Mail Station 30000002.3.19-20333. PHP 7.3: no fix will be provided. DSM built-in PHP patch scheduled for a subsequent DSM release.
Advisory
22 Oct 2026
SourceNotes
Advisory status Resolved, severity Critical. The built-in PHP in OS is not exposed to external attack surfaces, and the risk of exploitation is considered very low. Synology Drive is not affected.
- Affected
TrueNAS app catalog (PHP-based apps)
TrueNAS
Fixed version / ETA
Updated Nextcloud app image being published; other PHP apps as upstream images ship
Advisory
Checked 23 Oct 2026
SourceNotes
PHP-based catalog apps (e.g. Nextcloud) are affected via their own container images.
- Vendor stated not affected
TrueNAS CE/Enterprise (SCALE), CORE, TrueCommand, TrueNAS Connect
TrueNAS
Fixed version / ETA
No platform fix needed
Advisory
Checked 23 Oct 2026
SourceNotes
Not Affected. The TrueNAS platform does not ship or use PHP.
Network & security appliances36
- Under investigation
CloudGen Firewall, SecureEdge, Cloud Control, Email Gateway Defense, XDR, Security Awareness Training, MSP/Maestro, Backup Service (BBS), Firewall Insights
Barracuda
Fixed version / ETA
No fix yet
Advisory
Checked 23 Oct 2026
SourceNotes
Under investigation: CloudGen Firewall, SecureEdge, Cloud Control, Email Gateway Defense, XDR, Security Awareness Training, MSP/Maestro, Backup Service (BBS), Firewall Insights.
- Vendor stated not affected
ESG, Cloud-to-Cloud Backup, Cloud Archiving Service, Web Security Gateway/Agent, WAF / Load Balancer ADC / WAF Control Center, WAF-as-a-Service / Active DDoS Protection, Vulnerability Manager, Advanced Threat Protection, Data Inspector, Incident Response & Impersonation Protection, RMM, BarracudaONE, Message Archiver
Barracuda
Fixed version / ETA
Not applicable
Advisory
Checked 23 Oct 2026
SourceNotes
Not affected (explicit) for ESG, Cloud-to-Cloud Backup, Cloud Archiving Service, Web Security Gateway/Agent, WAF / Load Balancer ADC / WAF Control Center, WAF-as-a-Service / Active DDoS Protection, Vulnerability Manager, Advanced Threat Protection, Data Inspector, Incident Response & Impersonation Protection, RMM, BarracudaONE, Message Archiver.
- IPS protection CPAI-2026-15172 published
Check Point firewall web interfaces
Check Point
Fixed version / ETA
See vendor blog
Advisory
21 Oct 2026
SourceNotes
IPS protection CPAI-2026-15172 released.
- Under investigation
Catalyst Center
Cisco
Fixed version / ETA
Still under investigation
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: Under investigation. Several products are still under investigation, including Catalyst Center.
- Affected
Expressway / Expressway Select
Cisco
Fixed version / ETA
15.5.21 (TBD)
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: CSCwx37062. Confirmed vulnerable. No workarounds.
Cisco lists no workarounds. Expressway and Expressway Select (CSCwx37062) fix in 15.5.21 (TBD). Several products remain under investigation.
- Under investigation
ISE Portal Builder
Cisco
Fixed version / ETA
Still under investigation
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: Under investigation. Several products are still under investigation, including ISE Portal Builder.
- Affected
Ultra-Reliable Wireless Backhaul (URWB)
Cisco
Fixed version / ETA
27.1.1 (Feb 2027)
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: CSCwx37073; admin auth required; CVSS 6.6. Confirmed vulnerable. No workarounds. Revision 1.4 (Interim).
Cisco lists no workarounds. URWB (CSCwx37073) fix in 27.1.1 (Feb 2027), admin auth required, CVSS 6.6.
- Under investigation
WAE
Cisco
Fixed version / ETA
Still under investigation
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: Under investigation. Several products are still under investigation, including WAE.
- Affected
NetScaler ADC / Gateway management interfaces
Citrix
Fixed version / ETA
Planned 27 Oct 2026 (not shipped in this pack)
Advisory
22 Oct 2026
SourceNotes
Affected: All supported versions: NSIP GUI, management-enabled SNIP, Cluster IP GUI/API. Citrix plans to release fixes for all supported NetScaler software versions on October 27, 2026. Mitigation: restrict management access with ACLs (CTX228148).
Citrix plans to release fixes for all supported NetScaler software versions on October 27, 2026. That is a planned date, not a shipped fix in this pack. Until then, restrict management access with ACLs (CTX228148).
- Vendor stated not affected
NetScaler Console
Citrix
Fixed version / ETA
Not applicable
Advisory
22 Oct 2026
SourceNotes
Affected: Not impacted per TechZone post. NetScaler Console and SVM are not impacted.
- Vendor stated not affected
Other Citrix on-prem products (CTX697263)
Citrix
Fixed version / ETA
Not applicable
Advisory
Checked 23 Oct 2026
SourceNotes
Affected: Listed as Not Impacted in CTX697263. CTX697263 lists the other Citrix on-prem products as Not Impacted. Shown date was not in the fetched text (fetched 2026-10-23).
- Vendor stated not affected
SVM
Citrix
Fixed version / ETA
Not applicable
Advisory
22 Oct 2026
SourceNotes
Affected: Not impacted per TechZone post. NetScaler Console and SVM are not impacted.
- Affected
BIG-IP APM and SSLO data plane (access profile)
F5
Fixed version / ETA
No fix yet
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: 21.1.0, 17.5.0-17.5.1, 17.1.0-17.1.3. High / CVSS v3.1 8.1.
- Affected
BIG-IP Configuration utility (all modules, control plane)
F5
Fixed version / ETA
No fix yet
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: 21.1.0, 17.5.0-17.5.1, 17.1.0-17.1.3. High / CVSS v3.1 7.5. Interim: /etc/php.ini.d/K000163821.ini plus httpd restart.
For affected BIG-IP versions (21.1.0, 17.5.0-17.5.1, 17.1.0-17.1.3), F5's interim mitigation is /etc/php.ini.d/K000163821.ini (memory_limit=-1, session.upload_progress.enabled=0, etc.) plus an httpd restart. F5 lists no software fixes (None) in K000163821 as of the pack.
- Vendor stated not affected
BIG-IP Next
F5
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable.
- Vendor stated not affected
BIG-IQ
F5
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable.
- Under investigation
F5 AI Gateway 1.x
F5
Fixed version / ETA
Still under research
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
F5 AI Gateway 1.x is still under research.
- Vendor stated not affected
F5OS
F5
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable.
- Under investigation
FortiDDoS, FortiDDoS-F, FortiClient Cloud Services, FortiSOAR, FortiSOAR PaaS
Fortinet
Fixed version / ETA
No fixed versions listed
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Under investigation: FortiDDoS, FortiDDoS-F, FortiClient Cloud Services, FortiSOAR, FortiSOAR PaaS.
- Vendor stated not affected
FortiOS, FortiProxy, FortiWeb, FortiMail, FortiManager, FortiAnalyzer, FortiSIEM, FortiSandbox, FortiNAC, FortiADC, FortiSASE, FortiAuthenticator, FortiClient
Fortinet
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Products confirmed NOT Impacted include FortiOS, FortiProxy, FortiWeb, FortiMail, FortiManager, FortiAnalyzer, FortiSIEM, FortiSandbox, FortiNAC, FortiADC, FortiSASE, FortiAuthenticator and FortiClient (all platforms).
FG-IR-26-186 lists further products as not impacted. Known Exploited: No.
- Affected
ClearPass Policy Manager
HPE Aruba
Fixed version / ETA
Partial: 6.14.1 and 6.11.16 (full fixes in development)
Advisory
22 Oct 2026
SourceNotes
Affected: 6.14.0 and below; 6.11.15 and below. HPESBNW05171 rev 1, status Investigating, severity Critical. CPPM 6.14.1 and 6.11.16 partially mitigate by requiring cluster-admin authentication. HPE scores both CVEs CVSS 3.1 9.8.
CPPM 6.14.1 and 6.11.16 partially mitigate by moving them from an unauthenticated vulnerability to an authenticated vulnerability requiring cluster-admin privileges. Full fixes are still in development. Advisory status Investigating.
- No statement yet
Ivanti products
Ivanti
Fixed version / ETA
Not stated
Advisory
Checked 23 Oct 2026
SourceNotes
No vendor statement found for these CVEs.
- No statement yet
Juniper products
Juniper
Fixed version / ETA
Not stated
Advisory
Checked 23 Oct 2026
SourceNotes
No JSA found for these CVEs.
- Affected
pfSense Plus 26.07 / 26.03.1, pfSense CE 2.9.0 / 2.8.1
Netgate
Fixed version / ETA
Plus 26.07 / 26.03.1 and CE 2.9.0: PHP 8.5.12; CE 2.8.1: PHP 8.3.36 (install from shell, not the GUI)
Advisory
21 Oct 2026
SourceNotes
Affect pfSense software installations; concern only if the PHP GUI or Captive Portal is exposed to attackers (GUI is LAN-only by default, Captive Portal off by default).
- Affected
OPNsense Community Edition, Business Edition
OPNsense
Fixed version / ETA
CE 26.7.7 (PHP 8.5.12); BE 26.4.2p3 (PHP 8.3.36); restart captive portal after update
Advisory
21 Oct 2026
SourceNotes
Hotfix released for two critical PHP vulnerabilities.
- Vendor stated not affected
Captive Portal
Palo Alto Networks
Fixed version / ETA
Not applicable (not the affected surface)
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Not the affected surface in the PAN advisory. Only the management web interface is affected; GlobalProtect and Captive Portal are not.
- Vendor stated not affected
GlobalProtect
Palo Alto Networks
Fixed version / ETA
Not applicable (not the affected surface)
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Not the affected surface in the PAN advisory. Only the management web interface is affected; GlobalProtect and Captive Portal are not.
- Affected
PAN-OS 12.2 / 12.1 / 11.2 / 11.1 / 10.2
Palo Alto Networks
Fixed version / ETA
No fixed releases (ETA: TBD)
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: All versions; management web interface (HTTPS UI and XML API) only. Product CVSS-B 8.7 (availability-only vector). GlobalProtect and Captive Portal are not affected.
Restrict management to a jump box (management web interface HTTPS UI and XML API; GlobalProtect and Captive Portal are not affected per PAN).
- Affected
Panorama
Palo Alto Networks
Fixed version / ETA
No fixed releases (ETA: TBD)
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: All versions. Included in PAN advisory of impact on Palo Alto Networks products.
- Affected
WildFire WF-500 / WF-500-B
Palo Alto Networks
Fixed version / ETA
No fixed releases (ETA: TBD)
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: All versions. Appliance WildFire listed affected; WildFire Cloud is a separate row.
- No statement yet
SonicWall products
SonicWall
Fixed version / ETA
Not stated
Advisory
Checked 23 Oct 2026
SourceNotes
No SonicWall PSIRT advisory or notice found for these CVEs.
- Affected
Legacy MyUTM licensing portal
Sophos
Fixed version / ETA
Taken offline 21 Oct 2026
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: Ran an affected PHP version; taken offline 21 Oct. The legacy MyUTM licensing portal ran an affected PHP version and was taken offline on 21 Oct, with no evidence of exploitation found so far.
- Vendor stated not affected
Sophos products
Sophos
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: Advisory: no Sophos products are affected. sophos-sa-20261021-php2shell says no Sophos products are affected.
- No statement yet
Ubiquiti products
Ubiquiti
Fixed version / ETA
Not stated
Advisory
Checked 23 Oct 2026
SourceNotes
No Ubiquiti statement found for these CVEs.
- Initial assessment: not affected
All WatchGuard products
WatchGuard
Fixed version / ETA
No solution published
Advisory
21 Oct 2026
SourceNotes
WatchGuard's initial assessment is that none of our products are affected by this vulnerability. We are continuing to review.
WGSA-2026-0032, severity Informational. This is an initial assessment, not a final not-affected statement.
- No statement yet
Zyxel products
Zyxel
Fixed version / ETA
Not stated
Advisory
Checked 23 Oct 2026
SourceNotes
Zyxel security advisories index had no PHP / PHP2Shell entry when checked.
CMS & applications14
- No statement yet
Adobe Commerce / Magento
Adobe
Fixed version / ETA
Not stated
Advisory
Checked 23 Oct 2026
SourceNotes
No Adobe statement found for these CVEs.
- Affected
WordPress.com, WordPress VIP, WP Cloud, Pressable, Tumblr
Automattic
Fixed version / ETA
Platform patched
Advisory
21 Oct 2026
SourceNotes
Your site is already protected. There is nothing you need to do.
- Affected
BookStack (PHP runtime guidance)
BookStack
Fixed version / ETA
PHP 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35
Advisory
21 Oct 2026
SourceNotes
Guidance: update PHP; notes Ubuntu backports keep old version numbers.
- Affected
Drupal sites (PHP runtime)
Drupal
Fixed version / ETA
No Drupal release; update PHP
Advisory
21 Oct 2026
SourceNotes
Updating to a PHP release containing the patch to these vulnerabilities is the only complete mitigation. Site owners are responsible for the hosting platform.
Informational PSA-2026-10-20. Not a statement that Drupal itself is or is not affected.
- Vendor stated not affected
NGINX
F5
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable.
- No statement yet
Joomla
Joomla
Fixed version / ETA
Not stated
Advisory
Checked 23 Oct 2026
SourceNotes
Joomla Security Centre had no PHP2Shell entry when checked.
- Affected
moodle.org and Moodle HQ public-facing / client sites
Moodle
Fixed version / ETA
Update PHP (no Moodle release)
Advisory
22 Oct 2026
SourceNotes
Moodle HQ took its public sites offline as a precaution; We have patched this site and is patching other public/client sites. Urges self-hosters to update PHP.
About Moodle HQ's own hosting, not a Moodle LMS product advisory.
- Affected
Nextcloud All-in-One; Nextcloud servers on PHP
Nextcloud
Fixed version / ETA
AIO v14.4.1 ships updated PHP dependencies; self-hosted: update PHP
Advisory
21 Oct 2026
SourceNotes
AIO v14.4.1: PHP CVEs. Upgrade to this version now!
Mastodon post (21 Oct 2026): the issue would affect all online PHP servers and operations including Nextcloud.
- Affected
Passbolt Cloud and self-hosted images
Passbolt
Fixed version / ETA
Cloud, Docker, AWS AMI, OVA, Helm fixed; DigitalOcean fixed, awaiting marketplace review
Advisory
21 Oct 2026
SourceNotes
All Passbolt versions running on an unpatched PHP affected; Cloud, Docker, AWS AMI, OVA, Helm fixed; DigitalOcean fixed, awaiting marketplace review.
- Under investigation
AppDynamics SaaS
Splunk
Fixed version / ETA
Still under investigation
Advisory
22 Oct 2026
SourceNotes
Affected: Under investigation. AppDynamics SaaS is still Under Investigation.
- Under investigation
Smartlook
Splunk
Fixed version / ETA
Still under investigation
Advisory
22 Oct 2026
SourceNotes
Affected: Under investigation. Smartlook is still Under Investigation.
- Under investigation
Splunk OnCall
Splunk
Fixed version / ETA
Still under investigation
Advisory
22 Oct 2026
SourceNotes
Affected: Under investigation. Splunk OnCall is still Under Investigation.
- None currently known affected
Splunk products
Splunk
Fixed version / ETA
Not a flat “not affected”
Advisory
22 Oct 2026
SourceNotes
Affected: No products currently known affected; Splunk OnCall, AppDynamics SaaS and Smartlook under investigation. Currently, no Splunk products are known to be affected. Splunk OnCall, AppDynamics SaaS and Smartlook are still Under Investigation.
Currently, no Splunk products are known to be affected. Splunk OnCall, AppDynamics SaaS and Smartlook are still under investigation, not a flat not affected.
- Affected
WP Engine hosting platform
WP Engine
Fixed version / ETA
Platform patched
Advisory
22 Oct 2026
SourceNotes
All customer sites are running fully patched versions of PHP.
Containers, cloud, CDN & hosting platforms17
- WAF rule released
App & API Protector
Akamai
Fixed version / ETA
n/a (ASE 3000991 v1)
Advisory
21 Oct 2026
SourceNotes
Customers are protected because we have released security updates; Adaptive Security Engine rule 3000991 v1.
WAF mitigation only; it does not replace patching PHP.
- Vendor stated not affected
AWS services
AWS
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: Bulletin 2026-143-AWS. AWS services are not impacted (bulletin 2026-143-AWS).
AWS published a separate blog on using AWS WAF to apply mitigations for CVE-2026-109618 and CVE-2026-109619. AWS services themselves are not impacted per bulletin 2026-143-AWS.
- Under investigation
Meraki Dashboard
Cisco
Fixed version / ETA
Still under investigation
Advisory
21 Oct 2026 (updated 22 Oct 2026)
SourceNotes
Affected: Under investigation. Several products are still under investigation, including Meraki Dashboard.
- WAF protections deployed
Cloudflare WAF (Managed + Free rulesets)
Cloudflare
Fixed version / ETA
n/a (WAF mitigation)
Advisory
21 Oct 2026 (changelog 22 Oct 2026)
SourceNotes
WAF protections deployed about 9 hours ahead of public disclosure; 22 Oct emergency release renamed seven existing rules to the CVE IDs. Detection logic and rule actions remain unchanged.
WAF mitigation only; it does not replace patching PHP.
- Affected
Docker Official Images (php), Docker Hardened Images
Docker
Fixed version / ETA
DHI: 8.2.35, 8.3.36, 8.4.27, 8.5.12. Official php tags list 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35
Advisory
22 Oct 2026
SourceNotes
Official Images have already been updated and released to Docker Hub and mirrored to Amazon ECR; DHI updated.
- Vendor stated not affected
F5 Distributed Cloud
F5
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable.
- Virtual patch available
Next-Gen WAF
Fastly
Fixed version / ETA
n/a (opt-in virtual patch)
Advisory
21 Oct 2026
SourceNotes
Virtual patch available covering both CVEs (opt-in).
WAF mitigation only; it does not replace patching PHP.
- Affected
App Engine Standard, Cloud Run, Cloud Run functions
Google Cloud
Fixed version / ETA
Redeploy with PHP 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35. Some workloads may be auto-patched where automatic updates are on.
Advisory
21 Oct 2026
SourceNotes
Users of this language running on Google Cloud may be vulnerable. Some workloads may be auto-patched on App Engine Standard / Cloud Run with automatic updates.
GCP-2026-070.
- Vendor stated not affected
Google Cloud platform
Google Cloud
Fixed version / ETA
Not applicable
Advisory
21 Oct 2026
SourceNotes
While Google Cloud itself is not vulnerable, users of this language running on Google Cloud may be vulnerable.
GCP-2026-070.
- Affected
Heroku PHP runtime
Heroku
Fixed version / ETA
PHP 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12
Advisory
21 Oct 2026
SourceNotes
Fixed PHP versions available; Redeploy your apps to pick up the fixed versions.
- Affected
Kinsta managed WordPress hosting
Kinsta
Fixed version / ETA
PHP 7.4-8.5 patched platform-wide
Advisory
22 Oct 2026
SourceNotes
Resolved: All sites are protected, the PHP security updates have been rolled out across the platform, and we have no evidence of any breaches.
- Affected
Azure App Service (Linux built-in PHP, Windows PHP, WordPress on App Service); Azure WAF
Microsoft Azure
Fixed version / ETA
App Service Linux: 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 (rollout completed 21 Oct 2026). Windows built-in PHP runtimes are EOL: no security patch currently planned. Older Alpine-based WordPress images will not receive these security patches.
Advisory
21 Oct 2026
SourceNotes
Linux built-in PHP images patched in Latest and Standard channels (Extended later). Windows built-in PHP runtimes are EOL: No security patch for these runtimes is currently planned. Older Alpine-based WordPress images will not receive these security patches.
Azure WAF managed rule rollout expected to complete by 28 October 2026, per Microsoft Tech Community (updated 22 Oct 2026).
- Affected
Cortex XCORE
Palo Alto Networks
Fixed version / ETA
Patched 21 Oct 2026
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Cloud service. Cortex XCORE was patched on 21 Oct.
- Affected
WildFire Cloud
Palo Alto Networks
Fixed version / ETA
Patched 22 Oct 2026
Advisory
21 Oct 2026 (updated 23 Oct 2026)
SourceNotes
Affected: Cloud service. WildFire Cloud was patched on 22 Oct.
- Affected
Scalingo PaaS, PHP buildpack
Scalingo
Fixed version / ETA
PHP 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 available 21 Oct 2026; customers must redeploy
Advisory
21 Oct 2026
SourceNotes
PHP applications hosted on Scalingo are potentially affected; all four fixed PHP versions now available; router blocks multipart requests by default.
- Affected
Upsun Cloud PHP runtime images
Upsun
Fixed version / ETA
PHP 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 (plus vendor backports for older). Composable image update still in progress.
Advisory
22 Oct 2026
SourceNotes
Upsun Cloud has patched every php runtime image from PHP 7.4 to 8.5 and redeployed the affected environments; composable image update still in progress.
- WAF protections deployed
Vercel WAF / PHP on Vercel
Vercel
Fixed version / ETA
n/a (WAF); customers upgrade PHP
Advisory
21 Oct 2026
SourceNotes
WAF protections deployed before disclosure; do not replace patching.
WAF mitigation only; customers still need to upgrade PHP.
| Product | Status | Fixed version / ETA | Advisory | Notes |
|---|---|---|---|---|
| PHP upstream5 | ||||
| PHP 8.1 and older (EOL; 7.4/8.0/8.1 source backports)PHP Group | Affected | Minimal source backports for 7.4/8.0/8.1 (no binaries). AWS: no fix for CVE-2026-109618 on EOL. Unresolved. | 21 Oct 2026 Source | Affected: PHP 8.1 and older no longer get updates from the PHP project. CVE record does not enumerate pre-8.2.. PHP provided minimal source backports for 7.4, 8.0 and 8.1 (branches PHP-7.4/8.0/8.1-CVE-2026-109618-109619). No binaries. See open note vs AWS bulletin 2026-143-AWS. |
| PHP 8.2PHP Group | Affected | 8.2.35 | 21 Oct 2026 Source | Affected: <8.2.35 affected; EOL 31 Dec 2026. Both GHSAs: affected <8.2.35; patched 8.2.35. Branch EOL 31 Dec 2026. |
| PHP 8.3PHP Group | Affected | 8.3.36 | 21 Oct 2026 Source | Affected: <8.3.36 affected. Both GHSAs: affected <8.3.36; patched 8.3.36. |
| PHP 8.4PHP Group | Affected | 8.4.27 | 21 Oct 2026 Source | Affected: <8.4.27 affected. Both GHSAs: affected <8.4.27; patched 8.4.27. |
| PHP 8.5PHP Group | Affected | 8.5.12 | 21 Oct 2026 Source | Affected: <8.5.12 affected. Patched 8.5.12. php.net news 21 Oct 2026; ChangeLog lists 22 Oct 2026. |
| Linux distributions13 | ||||
| AlmaLinux 8, 9, 10 (all PHP streams)AlmaLinux | Affected | Patched packages for every stream; e.g. AlmaLinux 10 php 8.3.36-1.el10_2 (ALSA-2026:87070) | 21 Oct 2026 Source | AlmaLinux 8, 9, and 10 all ship affected PHP versions. Patched packages for every stream in production repos. |
| php83, php84, php85 (edge, 3.24 community)Alpine Linux | Affected | php83 8.3.36-r0; php84 8.4.27-r0; php85 8.5.12-r0 (edge and 3.24-community) | Checked 23 Oct 2026 Source | Fixed (Alpine security tracker). No date shown on the tracker page. Older Alpine branches (3.21-3.23) and php82 were not confirmed from the tracker. |
| AL2023 php8.2-8.5; AL2 PHP 8.2 Extras; AL2027 PreviewAmazon Linux | Affected | AL2023: ALAS2023-2026-3301 to 3304; AL2 php8.2 Extra: ALAS2PHP8.2-2026-015; AL2027 Preview: ALAS2027-2026-243. No fix planned for AL2 core php and AL2023 php8.1. | 21 Oct 2026 Source | Fixed for AL2023 php8.2/8.3/8.4/8.5, AL2 php8.2 Extra and AL2027 Preview; No Fix Planned for AL2 core php and AL2023 php8.1. Separate from the AWS services bulletin. No Fix Planned is a vendor status, not not affected. |
| php8.4 (trixie), php8.2 (bookworm)Debian | Affected | php8.4 8.4.27-1~deb13u1 (trixie); php8.2 8.2.35-1~deb12u1 (bookworm). Forky still listed vulnerable. | 21 Oct 2026 Source | Fixed in trixie-security and bookworm-security; forky still listed vulnerable; sid fixed for php8.4. DSA-6574-1, DLA-4848-1. Tracker also lists php8.2 (unstable) as unfixed. |
| php (Fedora 43, Fedora 44)Fedora | Affected | F43: php-8.4.27-2.fc43 (FEDORA-2026-d5f8446449); F44: php-8.5.12-1.fc44 (FEDORA-2026-a9eba4bbc3) | 21 Oct 2026 (stable 22 Oct 2026) Source | Security update pushed to stable (severity high). |
| php82/php83/php84/php85 portsFreeBSD | Affected | 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 | 21 Oct 2026 Source | VuXML entry: affected below fixed versions. |
| dev-lang/phpGentoo | Affected | Upgrade to >= 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35 (GLSA 202610-02) | 21 Oct 2026 Source | Affected < 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35. There is no known workaround. |
| Oracle Linux 10 php8.4Oracle Linux | Affected | php8.4-8.4.27-1.el10_2 (ELSA-2026-87071) | 21 Oct 2026 Source | Fixed (php8.4 security update). |
| RHEL 10, 9, 8, 7; OpenShift Dev Spaces 3Red Hat | Affected | RHEL 10: php 8.3.36-1.el10_2 (RHSA-2026:87070), php8.4 8.4.27 (RHSA-2026:87071); RHEL 8 php:7.4 (RHSA-2026:87080); further RHSAs for RHEL 8/9. Additional updates in progress. | 21 Oct 2026 (updated 22 Oct 2026) Source | RHEL 7-10 directly affected (RHEL 7: only CVE-2026-109619; the vulnerable code required to exploit CVE-2026-109618 is not present). OpenShift Dev Spaces 3 affected at Moderate. Bulletin status Ongoing, impact Important. RHSB-2026-013. Red Hat rates both Important (CVSS 3.1 8.1). Some updates are already available, with additional updates in progress. |
| Rocky Linux 10 phpRocky Linux | Affected | php 8.3.36 (RLSA-2026:87070) | 22 Oct 2026 Source | Fixed (Important: php security update). |
| php8 on SLES 15 SP6/SP7, SLES for SAP, openSUSE Leap 15.6SUSE | Affected | php8 8.2.35 (SUSE-SU-2026:4843-1, 15 SP6 / Leap 15.6); php8 8.3.36 (SUSE-SU-2026:4844-1, 15 SP7). Other products still in progress. | 21 Oct 2026 Source | SUSE overall state Pending, rated important; fixed packages released for SLE 15 SP6 (8.2.35) and SP7 (8.3.36). |
| Ubuntu 14.04-20.04 ESM PHPUbuntu | Affected | Fixed under ESM (see USN-8948-2 for per-release package versions) | 21 Oct 2026 Source | Fixed under ESM (USN-8948-2 follows USN-8948-1). Ubuntu backports keep older version strings, so version-only scanners may report a false positive. |
| Ubuntu PHP packagesUbuntu | Affected | Fixes available (see advisory) | Checked 23 Oct 2026 Source | Ubuntu published “PHP2Shell vulnerability: fixes available”. Shown date is not in the source pack; link only. Ubuntu backports keep older version strings, so version-only scanners may report a false positive. |
| Hosting panels4 | ||||
| alt-php, ea-php, native CloudLinux PHP, TuxCare ELS PHPCloudLinux | Affected | alt-php82 8.2.35-1, alt-php83 8.3.36-1, alt-php84 8.4.27-1, alt-php85 8.5.12-1 (CL 8/9); earlier backports e.g. alt-php85 8.5.11-5, ea-php84 8.4.26-2.el8.cloudlinux.1 | 23 Oct 2026 Source | Fixed packages in stable for alt-php and native PHP; alt-php/ea-php fixes are backports carrying the old version number. CloudLinux backports keep older version strings, so version-only scanners may report a false positive. CLSA-2026:87070 dated 22 Oct 2026. |
| cPanel & WHM, EasyApache 4 ea-phpcPanel | Affected | cPanel & WHM 11.110.0.153 / 11.134.0.66 / 11.136.0.50 / 11.138.0.18 (WP Squared 11.138.1.17); ea-php74 7.4.33-19 through ea-php85 8.5.12. Older than 7.4: TuxCare ELS. | 22 Oct 2026 Source | All shipped PHP versions are suspected to be vulnerable; updates released for ea-php74 and above. |
| DirectAdmin CustomBuild PHPDirectAdmin | Affected | PHP 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12; vendor patches for 7.4 / 8.0 / 8.1 (same version number). PHP 7.3-5.6 did not yet have a patch at the time. Needs da update + da build php. | 21 Oct 2026 Source | New DA build released to current and stable channels; PHP 8.2-8.5 bumped, patches added for 8.1, 8.0, 7.4; PHP versions 7.3 - 5.6 does not yet have a patch. Staff forum post (DirectAdmin Announcements, administrator fln), not a formal advisory. |
| PHP shipped with Plesk Obsidian (Linux, Windows) and Plesk sw-engine/plesk-enginePlesk | Affected | PHP 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35; EOL 7.4.33, 8.0.30, 8.1.34 fixed in builds dated 21 Oct 2026 (Linux only); Plesk UI engine fixed in Obsidian 18.0.80 Update 11 and 18.0.81 Update 4 | 22 Oct 2026 Source | All PHP versions shipped with Plesk are also affected; fixes available. Plesk EOL builds keep the same version number and differ by build date, so version-only scanners may report a false positive. The panel's own management engine runs PHP and needed its own fix. |
| NAS & consumer devices6 | ||||
| Nighthawk RAX28, RAX29, RAX30, RAXE290, RAXE300, CAX30NETGEAR | Under investigation | No fixed firmware yet | 22 Oct 2026 Source | Only the Nighthawk models listed below were found to include PHP components and their actual impact is under review. PHP is LAN/WiFi-only management, not accessible from the Internet by default. Severity MEDIUM. This advisory will be updated when fixed firmware versions are available. |
| Other NETGEAR products and servicesNETGEAR | Vendor stated not affected | Not applicable | 22 Oct 2026 Source | No other NETGEAR product or service is exposed to these vulnerabilities based on our assessment. |
| Multiple QNAP productsQNAP | Affected (multiple products), no fix yet | No fix yet | 22 Oct 2026 Source | Multiple QNAP products are affected. QNAP is working on fixes, and updated versions will be released as they become available. QSA-26-18. Interim guidance: keep NAS off the internet, use VPN, restrict management ports. |
| DSM PHP packages, Mail Station, Synology CalendarSynology | Affected | PHP 7.4.33-0131, 8.0.30-0122, 8.1.34-0120, 8.2.35-0171, 8.3.36-0051, 8.4.27-0051; Calendar 3.0.4-21435; Mail Station 30000002.3.19-20333. PHP 7.3: no fix will be provided. DSM built-in PHP patch scheduled for a subsequent DSM release. | 22 Oct 2026 Source | Advisory status Resolved, severity Critical. The built-in PHP in OS is not exposed to external attack surfaces, and the risk of exploitation is considered very low. Synology Drive is not affected. |
| TrueNAS app catalog (PHP-based apps)TrueNAS | Affected | Updated Nextcloud app image being published; other PHP apps as upstream images ship | Checked 23 Oct 2026 Source | PHP-based catalog apps (e.g. Nextcloud) are affected via their own container images. |
| TrueNAS CE/Enterprise (SCALE), CORE, TrueCommand, TrueNAS ConnectTrueNAS | Vendor stated not affected | No platform fix needed | Checked 23 Oct 2026 Source | Not Affected. The TrueNAS platform does not ship or use PHP. |
| Network & security appliances36 | ||||
| CloudGen Firewall, SecureEdge, Cloud Control, Email Gateway Defense, XDR, Security Awareness Training, MSP/Maestro, Backup Service (BBS), Firewall InsightsBarracuda | Under investigation | No fix yet | Checked 23 Oct 2026 Source | Under investigation: CloudGen Firewall, SecureEdge, Cloud Control, Email Gateway Defense, XDR, Security Awareness Training, MSP/Maestro, Backup Service (BBS), Firewall Insights. |
| ESG, Cloud-to-Cloud Backup, Cloud Archiving Service, Web Security Gateway/Agent, WAF / Load Balancer ADC / WAF Control Center, WAF-as-a-Service / Active DDoS Protection, Vulnerability Manager, Advanced Threat Protection, Data Inspector, Incident Response & Impersonation Protection, RMM, BarracudaONE, Message ArchiverBarracuda | Vendor stated not affected | Not applicable | Checked 23 Oct 2026 Source | Not affected (explicit) for ESG, Cloud-to-Cloud Backup, Cloud Archiving Service, Web Security Gateway/Agent, WAF / Load Balancer ADC / WAF Control Center, WAF-as-a-Service / Active DDoS Protection, Vulnerability Manager, Advanced Threat Protection, Data Inspector, Incident Response & Impersonation Protection, RMM, BarracudaONE, Message Archiver. |
| Check Point firewall web interfacesCheck Point | IPS protection CPAI-2026-15172 published | See vendor blog | 21 Oct 2026 Source | IPS protection CPAI-2026-15172 released. |
| Catalyst CenterCisco | Under investigation | Still under investigation | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: Under investigation. Several products are still under investigation, including Catalyst Center. |
| Expressway / Expressway SelectCisco | Affected | 15.5.21 (TBD) | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: CSCwx37062. Confirmed vulnerable. No workarounds. Cisco lists no workarounds. Expressway and Expressway Select (CSCwx37062) fix in 15.5.21 (TBD). Several products remain under investigation. |
| ISE Portal BuilderCisco | Under investigation | Still under investigation | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: Under investigation. Several products are still under investigation, including ISE Portal Builder. |
| Ultra-Reliable Wireless Backhaul (URWB)Cisco | Affected | 27.1.1 (Feb 2027) | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: CSCwx37073; admin auth required; CVSS 6.6. Confirmed vulnerable. No workarounds. Revision 1.4 (Interim). Cisco lists no workarounds. URWB (CSCwx37073) fix in 27.1.1 (Feb 2027), admin auth required, CVSS 6.6. |
| WAECisco | Under investigation | Still under investigation | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: Under investigation. Several products are still under investigation, including WAE. |
| NetScaler ADC / Gateway management interfacesCitrix | Affected | Planned 27 Oct 2026 (not shipped in this pack) | 22 Oct 2026 Source | Affected: All supported versions: NSIP GUI, management-enabled SNIP, Cluster IP GUI/API. Citrix plans to release fixes for all supported NetScaler software versions on October 27, 2026. Mitigation: restrict management access with ACLs (CTX228148). Citrix plans to release fixes for all supported NetScaler software versions on October 27, 2026. That is a planned date, not a shipped fix in this pack. Until then, restrict management access with ACLs (CTX228148). |
| NetScaler ConsoleCitrix | Vendor stated not affected | Not applicable | 22 Oct 2026 Source | Affected: Not impacted per TechZone post. NetScaler Console and SVM are not impacted. |
| Other Citrix on-prem products (CTX697263)Citrix | Vendor stated not affected | Not applicable | Checked 23 Oct 2026 Source | Affected: Listed as Not Impacted in CTX697263. CTX697263 lists the other Citrix on-prem products as Not Impacted. Shown date was not in the fetched text (fetched 2026-10-23). |
| SVMCitrix | Vendor stated not affected | Not applicable | 22 Oct 2026 Source | Affected: Not impacted per TechZone post. NetScaler Console and SVM are not impacted. |
| BIG-IP APM and SSLO data plane (access profile)F5 | Affected | No fix yet | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: 21.1.0, 17.5.0-17.5.1, 17.1.0-17.1.3. High / CVSS v3.1 8.1. |
| BIG-IP Configuration utility (all modules, control plane)F5 | Affected | No fix yet | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: 21.1.0, 17.5.0-17.5.1, 17.1.0-17.1.3. High / CVSS v3.1 7.5. Interim: /etc/php.ini.d/K000163821.ini plus httpd restart. For affected BIG-IP versions (21.1.0, 17.5.0-17.5.1, 17.1.0-17.1.3), F5's interim mitigation is /etc/php.ini.d/K000163821.ini (memory_limit=-1, session.upload_progress.enabled=0, etc.) plus an httpd restart. F5 lists no software fixes (None) in K000163821 as of the pack. |
| BIG-IP NextF5 | Vendor stated not affected | Not applicable | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable. |
| BIG-IQF5 | Vendor stated not affected | Not applicable | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable. |
| F5 AI Gateway 1.xF5 | Under investigation | Still under research | 21 Oct 2026 (updated 23 Oct 2026) Source | F5 AI Gateway 1.x is still under research. |
| F5OSF5 | Vendor stated not affected | Not applicable | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable. |
| FortiDDoS, FortiDDoS-F, FortiClient Cloud Services, FortiSOAR, FortiSOAR PaaSFortinet | Under investigation | No fixed versions listed | 21 Oct 2026 (updated 22 Oct 2026) Source | Under investigation: FortiDDoS, FortiDDoS-F, FortiClient Cloud Services, FortiSOAR, FortiSOAR PaaS. |
| FortiOS, FortiProxy, FortiWeb, FortiMail, FortiManager, FortiAnalyzer, FortiSIEM, FortiSandbox, FortiNAC, FortiADC, FortiSASE, FortiAuthenticator, FortiClientFortinet | Vendor stated not affected | Not applicable | 21 Oct 2026 (updated 22 Oct 2026) Source | Products confirmed NOT Impacted include FortiOS, FortiProxy, FortiWeb, FortiMail, FortiManager, FortiAnalyzer, FortiSIEM, FortiSandbox, FortiNAC, FortiADC, FortiSASE, FortiAuthenticator and FortiClient (all platforms). FG-IR-26-186 lists further products as not impacted. Known Exploited: No. |
| ClearPass Policy ManagerHPE Aruba | Affected | Partial: 6.14.1 and 6.11.16 (full fixes in development) | 22 Oct 2026 Source | Affected: 6.14.0 and below; 6.11.15 and below. HPESBNW05171 rev 1, status Investigating, severity Critical. CPPM 6.14.1 and 6.11.16 partially mitigate by requiring cluster-admin authentication. HPE scores both CVEs CVSS 3.1 9.8. CPPM 6.14.1 and 6.11.16 partially mitigate by moving them from an unauthenticated vulnerability to an authenticated vulnerability requiring cluster-admin privileges. Full fixes are still in development. Advisory status Investigating. |
| Ivanti productsIvanti | No statement yet | Not stated | Checked 23 Oct 2026 Source | No vendor statement found for these CVEs. |
| Juniper productsJuniper | No statement yet | Not stated | Checked 23 Oct 2026 Source | No JSA found for these CVEs. |
| pfSense Plus 26.07 / 26.03.1, pfSense CE 2.9.0 / 2.8.1Netgate | Affected | Plus 26.07 / 26.03.1 and CE 2.9.0: PHP 8.5.12; CE 2.8.1: PHP 8.3.36 (install from shell, not the GUI) | 21 Oct 2026 Source | Affect pfSense software installations; concern only if the PHP GUI or Captive Portal is exposed to attackers (GUI is LAN-only by default, Captive Portal off by default). |
| OPNsense Community Edition, Business EditionOPNsense | Affected | CE 26.7.7 (PHP 8.5.12); BE 26.4.2p3 (PHP 8.3.36); restart captive portal after update | 21 Oct 2026 Source | Hotfix released for two critical PHP vulnerabilities. |
| Captive PortalPalo Alto Networks | Vendor stated not affected | Not applicable (not the affected surface) | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Not the affected surface in the PAN advisory. Only the management web interface is affected; GlobalProtect and Captive Portal are not. |
| GlobalProtectPalo Alto Networks | Vendor stated not affected | Not applicable (not the affected surface) | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Not the affected surface in the PAN advisory. Only the management web interface is affected; GlobalProtect and Captive Portal are not. |
| PAN-OS 12.2 / 12.1 / 11.2 / 11.1 / 10.2Palo Alto Networks | Affected | No fixed releases (ETA: TBD) | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: All versions; management web interface (HTTPS UI and XML API) only. Product CVSS-B 8.7 (availability-only vector). GlobalProtect and Captive Portal are not affected. Restrict management to a jump box (management web interface HTTPS UI and XML API; GlobalProtect and Captive Portal are not affected per PAN). |
| PanoramaPalo Alto Networks | Affected | No fixed releases (ETA: TBD) | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: All versions. Included in PAN advisory of impact on Palo Alto Networks products. |
| WildFire WF-500 / WF-500-BPalo Alto Networks | Affected | No fixed releases (ETA: TBD) | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: All versions. Appliance WildFire listed affected; WildFire Cloud is a separate row. |
| SonicWall productsSonicWall | No statement yet | Not stated | Checked 23 Oct 2026 Source | No SonicWall PSIRT advisory or notice found for these CVEs. |
| Legacy MyUTM licensing portalSophos | Affected | Taken offline 21 Oct 2026 | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: Ran an affected PHP version; taken offline 21 Oct. The legacy MyUTM licensing portal ran an affected PHP version and was taken offline on 21 Oct, with no evidence of exploitation found so far. |
| Sophos productsSophos | Vendor stated not affected | Not applicable | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: Advisory: no Sophos products are affected. sophos-sa-20261021-php2shell says no Sophos products are affected. |
| Ubiquiti productsUbiquiti | No statement yet | Not stated | Checked 23 Oct 2026 Source | No Ubiquiti statement found for these CVEs. |
| All WatchGuard productsWatchGuard | Initial assessment: not affected | No solution published | 21 Oct 2026 Source | WatchGuard's initial assessment is that none of our products are affected by this vulnerability. We are continuing to review. WGSA-2026-0032, severity Informational. This is an initial assessment, not a final not-affected statement. |
| Zyxel productsZyxel | No statement yet | Not stated | Checked 23 Oct 2026 Source | Zyxel security advisories index had no PHP / PHP2Shell entry when checked. |
| CMS & applications14 | ||||
| Adobe Commerce / MagentoAdobe | No statement yet | Not stated | Checked 23 Oct 2026 Source | No Adobe statement found for these CVEs. |
| WordPress.com, WordPress VIP, WP Cloud, Pressable, TumblrAutomattic | Affected | Platform patched | 21 Oct 2026 Source | Your site is already protected. There is nothing you need to do. |
| BookStack (PHP runtime guidance)BookStack | Affected | PHP 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35 | 21 Oct 2026 Source | Guidance: update PHP; notes Ubuntu backports keep old version numbers. |
| Drupal sites (PHP runtime)Drupal | Affected | No Drupal release; update PHP | 21 Oct 2026 Source | Updating to a PHP release containing the patch to these vulnerabilities is the only complete mitigation. Site owners are responsible for the hosting platform. Informational PSA-2026-10-20. Not a statement that Drupal itself is or is not affected. |
| NGINXF5 | Vendor stated not affected | Not applicable | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable. |
| JoomlaJoomla | No statement yet | Not stated | Checked 23 Oct 2026 Source | Joomla Security Centre had no PHP2Shell entry when checked. |
| moodle.org and Moodle HQ public-facing / client sitesMoodle | Affected | Update PHP (no Moodle release) | 22 Oct 2026 Source | Moodle HQ took its public sites offline as a precaution; We have patched this site and is patching other public/client sites. Urges self-hosters to update PHP. About Moodle HQ's own hosting, not a Moodle LMS product advisory. |
| Nextcloud All-in-One; Nextcloud servers on PHPNextcloud | Affected | AIO v14.4.1 ships updated PHP dependencies; self-hosted: update PHP | 21 Oct 2026 Source | AIO v14.4.1: PHP CVEs. Upgrade to this version now! Mastodon post (21 Oct 2026): the issue would affect all online PHP servers and operations including Nextcloud. |
| Passbolt Cloud and self-hosted imagesPassbolt | Affected | Cloud, Docker, AWS AMI, OVA, Helm fixed; DigitalOcean fixed, awaiting marketplace review | 21 Oct 2026 Source | All Passbolt versions running on an unpatched PHP affected; Cloud, Docker, AWS AMI, OVA, Helm fixed; DigitalOcean fixed, awaiting marketplace review. |
| AppDynamics SaaSSplunk | Under investigation | Still under investigation | 22 Oct 2026 Source | Affected: Under investigation. AppDynamics SaaS is still Under Investigation. |
| SmartlookSplunk | Under investigation | Still under investigation | 22 Oct 2026 Source | Affected: Under investigation. Smartlook is still Under Investigation. |
| Splunk OnCallSplunk | Under investigation | Still under investigation | 22 Oct 2026 Source | Affected: Under investigation. Splunk OnCall is still Under Investigation. |
| Splunk productsSplunk | None currently known affected | Not a flat “not affected” | 22 Oct 2026 Source | Affected: No products currently known affected; Splunk OnCall, AppDynamics SaaS and Smartlook under investigation. Currently, no Splunk products are known to be affected. Splunk OnCall, AppDynamics SaaS and Smartlook are still Under Investigation. Currently, no Splunk products are known to be affected. Splunk OnCall, AppDynamics SaaS and Smartlook are still under investigation, not a flat not affected. |
| WP Engine hosting platformWP Engine | Affected | Platform patched | 22 Oct 2026 Source | All customer sites are running fully patched versions of PHP. |
| Containers, cloud, CDN & hosting platforms17 | ||||
| App & API ProtectorAkamai | WAF rule released | n/a (ASE 3000991 v1) | 21 Oct 2026 Source | Customers are protected because we have released security updates; Adaptive Security Engine rule 3000991 v1. WAF mitigation only; it does not replace patching PHP. |
| AWS servicesAWS | Vendor stated not affected | Not applicable | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: Bulletin 2026-143-AWS. AWS services are not impacted (bulletin 2026-143-AWS). AWS published a separate blog on using AWS WAF to apply mitigations for CVE-2026-109618 and CVE-2026-109619. AWS services themselves are not impacted per bulletin 2026-143-AWS. |
| Meraki DashboardCisco | Under investigation | Still under investigation | 21 Oct 2026 (updated 22 Oct 2026) Source | Affected: Under investigation. Several products are still under investigation, including Meraki Dashboard. |
| Cloudflare WAF (Managed + Free rulesets)Cloudflare | WAF protections deployed | n/a (WAF mitigation) | 21 Oct 2026 (changelog 22 Oct 2026) Source | WAF protections deployed about 9 hours ahead of public disclosure; 22 Oct emergency release renamed seven existing rules to the CVE IDs. Detection logic and rule actions remain unchanged. WAF mitigation only; it does not replace patching PHP. |
| Docker Official Images (php), Docker Hardened ImagesDocker | Affected | DHI: 8.2.35, 8.3.36, 8.4.27, 8.5.12. Official php tags list 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35 | 22 Oct 2026 Source | Official Images have already been updated and released to Docker Hub and mirrored to Amazon ECR; DHI updated. |
| F5 Distributed CloudF5 | Vendor stated not affected | Not applicable | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Vendor stated not vulnerable. BIG-IP Next, BIG-IQ, F5OS, NGINX and Distributed Cloud are not vulnerable. |
| Next-Gen WAFFastly | Virtual patch available | n/a (opt-in virtual patch) | 21 Oct 2026 Source | Virtual patch available covering both CVEs (opt-in). WAF mitigation only; it does not replace patching PHP. |
| App Engine Standard, Cloud Run, Cloud Run functionsGoogle Cloud | Affected | Redeploy with PHP 8.5.12 / 8.4.27 / 8.3.36 / 8.2.35. Some workloads may be auto-patched where automatic updates are on. | 21 Oct 2026 Source | Users of this language running on Google Cloud may be vulnerable. Some workloads may be auto-patched on App Engine Standard / Cloud Run with automatic updates. GCP-2026-070. |
| Google Cloud platformGoogle Cloud | Vendor stated not affected | Not applicable | 21 Oct 2026 Source | While Google Cloud itself is not vulnerable, users of this language running on Google Cloud may be vulnerable. GCP-2026-070. |
| Heroku PHP runtimeHeroku | Affected | PHP 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 | 21 Oct 2026 Source | Fixed PHP versions available; Redeploy your apps to pick up the fixed versions. |
| Kinsta managed WordPress hostingKinsta | Affected | PHP 7.4-8.5 patched platform-wide | 22 Oct 2026 Source | Resolved: All sites are protected, the PHP security updates have been rolled out across the platform, and we have no evidence of any breaches. |
| Azure App Service (Linux built-in PHP, Windows PHP, WordPress on App Service); Azure WAFMicrosoft Azure | Affected | App Service Linux: 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 (rollout completed 21 Oct 2026). Windows built-in PHP runtimes are EOL: no security patch currently planned. Older Alpine-based WordPress images will not receive these security patches. | 21 Oct 2026 Source | Linux built-in PHP images patched in Latest and Standard channels (Extended later). Windows built-in PHP runtimes are EOL: No security patch for these runtimes is currently planned. Older Alpine-based WordPress images will not receive these security patches. Azure WAF managed rule rollout expected to complete by 28 October 2026, per Microsoft Tech Community (updated 22 Oct 2026). |
| Cortex XCOREPalo Alto Networks | Affected | Patched 21 Oct 2026 | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Cloud service. Cortex XCORE was patched on 21 Oct. |
| WildFire CloudPalo Alto Networks | Affected | Patched 22 Oct 2026 | 21 Oct 2026 (updated 23 Oct 2026) Source | Affected: Cloud service. WildFire Cloud was patched on 22 Oct. |
| Scalingo PaaS, PHP buildpackScalingo | Affected | PHP 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 available 21 Oct 2026; customers must redeploy | 21 Oct 2026 Source | PHP applications hosted on Scalingo are potentially affected; all four fixed PHP versions now available; router blocks multipart requests by default. |
| Upsun Cloud PHP runtime imagesUpsun | Affected | PHP 8.2.35 / 8.3.36 / 8.4.27 / 8.5.12 (plus vendor backports for older). Composable image update still in progress. | 22 Oct 2026 Source | Upsun Cloud has patched every php runtime image from PHP 7.4 to 8.5 and redeployed the affected environments; composable image update still in progress. |
| Vercel WAF / PHP on VercelVercel | WAF protections deployed | n/a (WAF); customers upgrade PHP | 21 Oct 2026 Source | WAF protections deployed before disclosure; do not replace patching. WAF mitigation only; customers still need to upgrade PHP. |
Timeline38
Key events
Newest first.
- Vendorplanned
Citrix's planned release date for NetScaler fixes. This has not happened yet.
Source - KEV
Re-checked the live KEV feed: it is still catalog version 2026.10.21 (released 2026-10-21T14:04:39Z, 1,754 entries), and neither PHP CVE is listed. (Checked 2026-10-23 11:08 SGT (UTC+8).)
Source - Retracted
Sophos CTU retracted its 'successful exploitation' claim: its telemetry showed only scanning and a few failed attempts, with no evidence of a successful compromise.
Source - Exploited
Sophos CTU updated its blog to report one successful PHP2Shell exploitation in customer environments. (Retracted at 21:21 UTC the same day (next entry).)
Source - Disclosure
PHP published its GitHub security advisories GHSA-6wmf-4rv5-p3rp (CVE-2026-109619) and, at 13:34:25Z, GHSA-w8hw-w9fx-j79w (CVE-2026-109618). (Times from the GitHub API published_at field.)
Source - Patch
PHP released 8.5.12, 8.4.27, 8.3.36 and 8.2.35, fixing both CVEs, plus source-only backports for 7.4, 8.0 and 8.1. (php.net news posts are dated 21 Oct 2026, but the php.net ChangeLog lists all four releases as 22 Oct 2026. We use 21 Oct, which matches the GHSAs and CVE records.)
Source - Disclosure
After details leaked ahead of the embargo, watchTowr publicly confirmed the PHP RCE bugs were real but withheld technical details.
Source - Exploited
Amazon's MadPot honeypots logged an exploitation attempt from anonymising infrastructure while the bugs were still under embargo; Amazon says it is unclear whether such attempts would succeed.
Source
Full timeline (38)
Tue 27 Oct 20261
- Vendorplanned
Citrix's planned release date for NetScaler fixes. This has not happened yet.
Source
Fri 23 Oct 20262
- KEV
Re-checked the live KEV feed: it is still catalog version 2026.10.21 (released 2026-10-21T14:04:39Z, 1,754 entries), and neither PHP CVE is listed. (Checked 2026-10-23 11:08 SGT (UTC+8).)
Source - Vendor
Palo Alto Networks updated its advisory with status changes for Cortex, Strata Cloud Manager and WildFire products.
Source
Thu 22 Oct 202611
- Note
NVD last modified both entries; -109618 shows as Analyzed and -109619 as Modified.
Source - Vendor
Cisco updated its advisory to revision 1.4 (Interim), revising the lists of products under investigation and products confirmed not vulnerable.
Source - Retracted
Sophos CTU retracted its 'successful exploitation' claim: its telemetry showed only scanning and a few failed attempts, with no evidence of a successful compromise.
Source - PoC
VulnCheck told The Register it had built an exploit for CVE-2026-109618 that defeats ASLR on x86-64, shared only with its paying customers. (Not public, so no link and no details. The page shows 'Published thu 22 Oct 2026 // 21:37 UTC', while its metadata says 20:37:52Z; we use the metadata time.)
Source - Exploited
Imperva reported about 482k attack requests across about 22k sites in the first 24 hours, but said this was not confirmed successful exploitation.
Source - Exploited
Sophos CTU updated its blog to report one successful PHP2Shell exploitation in customer environments. (Retracted at 21:21 UTC the same day (next entry).)
Source - Note
Searchlight Cyber released an open-source scanner to check whether hosts are exposed, per Help Net Security. (Shown as an update at 08:05 AM ET on 22 Oct.)
Source - PoC
SecurityWeek quoted watchTowr's Jake Knott saying the exploits being sprayed either don't work, only test timing, or crash the target. (Shown as 5:48 AM ET. This is an emailed statement quoted by SecurityWeek, not a watchTowr publication.)
Source - Vendor
HPE published HPESBNW05171: ClearPass Policy Manager affected, with 6.14.1/6.11.16 only partially mitigating.
Source - Vendor
Splunk SVD-2026-1013 said no Splunk products are currently known to be affected, with OnCall, AppDynamics SaaS and Smartlook still under investigation. (Not a 'not affected' statement for the three products under investigation.)
Source - Vendor
Citrix said NetScaler management interfaces are affected and that it plans fixes for all supported versions on 27 Oct 2026. (Shown as 'Last updated on: October 22, 2026 (PDT)'. The first-posted date only appears as a relative time.)
Source
Wed 21 Oct 202616
- Vendor
AWS bulletin 2026-143-AWS said AWS services are not impacted and listed customer guidance for Elastic Beanstalk, Lightsail, Amazon Linux and others. (Shown as 10/21/2026 14:30 PDT. AWS says no fix exists for -109618 on EOL branches 5.4-8.1, which conflicts with PHP's source backports for 7.4/8.0/8.1.)
Source - Vendor
Cisco published cisco-sa-php-october26-Jj384Daq, confirming URWB and Expressway as vulnerable and many products under investigation.
Source - Vendor
Sophos CTU reissued its advisory after PHP's release, saying no active exploitation had been reported yet. (Original version at about 12:55 UTC, per the page.)
Source - Exploited
watchTowr published its PHP2Shell page, marking the bugs 'Exploited in the wild: Yes' based on its honeypots. (Honeypot observation of exploitation activity; not a confirmed compromise of a real system.)
Source - Note
NVD published entries for both CVEs, later scoring them CVSS 3.1 9.8 (-109618) and 8.1 (-109619).
Source - KEV
CISA released KEV catalog version 2026.10.21; neither PHP CVE was in it.
Source - Vendor
Cloudflare said it had already pushed default WAF rules for the bugs before public disclosure.
Source - Disclosure
The CVE records went public on cve.org: CVE-2026-109618 'RCE via OOM corruption' and, at 13:54:43Z, CVE-2026-109619 'RCE via stale global state', both CVSS 4.0 9.2.
Source - Disclosure
PHP published its GitHub security advisories GHSA-6wmf-4rv5-p3rp (CVE-2026-109619) and, at 13:34:25Z, GHSA-w8hw-w9fx-j79w (CVE-2026-109618). (Times from the GitHub API published_at field.)
Source - PoC
Amazon saw the first public proof-of-concept exploits around 02:00 UTC and further attempts against its honeypots until 08:00 UTC, before the fix shipped. (PoCs noted as existing only; no links to exploit code.)
Source - Patch
PHP released 8.5.12, 8.4.27, 8.3.36 and 8.2.35, fixing both CVEs, plus source-only backports for 7.4, 8.0 and 8.1. (php.net news posts are dated 21 Oct 2026, but the php.net ChangeLog lists all four releases as 22 Oct 2026. We use 21 Oct, which matches the GHSAs and CVE records.)
Source - Note
CISA urged immediate patching and said it had not observed exploitation at publication; it told organisations on PHP 8.1 or earlier to take PHP systems offline.
Source - Note
The UK NCSC told organisations to update PHP immediately or take systems offline if they cannot. (Page metadata: published 2026-10-21, modified 2026-10-22.)
Source - Vendor
Palo Alto Networks said the management web interface of PAN-OS, Panorama and WF-500 appliances is affected, with no fixed releases yet. (Advisory updated again on 2026-10-23.)
Source - Vendor
F5 published K000163821, listing BIG-IP Configuration utility and APM/SSLO as affected with no fixes yet. (From this morning's pack (rendered with headless Chrome); not re-fetched in this pass.)
Source - Vendor
Sophos said no Sophos products are affected; its legacy MyUTM licensing portal ran an affected PHP and was taken offline.
Source
Tue 20 Oct 20262
- Disclosure
After details leaked ahead of the embargo, watchTowr publicly confirmed the PHP RCE bugs were real but withheld technical details.
Source - Disclosure
PHP pre-announced an emergency security release for two critical bugs rated CVSS 4.0 9.2. (The live page now says the release was scheduled for 21 Oct 14:00 UTC; watchTowr's 20 Oct post says everyone was meant to wait until 'Thursday at 11am ET' (22 Oct), and BleepingComputer reports PHP brought the date forward after a leak. The page may have been edited.)
Source
Sat 17 Oct 20261
- Exploited
Amazon's MadPot honeypots logged an exploitation attempt from anonymising infrastructure while the bugs were still under embargo; Amazon says it is unclear whether such attempts would succeed.
Source
Mon 12 Oct 20261
- Note
CVE-2026-109618 and CVE-2026-109619 were reserved by PHP as CNA (-109619 at 21:04:00Z).
Source
Mon 24 Aug 20261
- Disclosure
Wiz says it reported the vulnerabilities to the PHP security team.
Source
Wed 19 Aug 20261
- Disclosure
Wiz Research says it found the first of the PHP bugs using AI-assisted analysis.
Source
Tue 11 Aug 20261
- Disclosure
PHP's security team received its first reports of the issues, according to Sophos. (Secondary: stated by Sophos, not by PHP directly.)
Source
Wed 5 Aug 20261
- Note
A Calif researcher (@lcfr_hax) posted a bare hash on X; Calif later pointed to it as proof he found and exploited the bug class first. (Priority claim by Calif; the 5 Aug post itself is only a hash. Wiz gives its own discovery date of 19 Aug.)
Source
News & write-ups
Research7
- PHP2Shell: Early Attack Activity Through Imperva's Lens
Imperva
- PHP2Shell: AI uncovers critical RCE vulnerabilities affecting 70% of the Internet
Wiz Research
- php2shell by Calif Research
Calif
- PHP2Shell RCE Exploited: CVE-2026-109618 & CVE-2026-109619
watchTowr
- Amazon Threat Intelligence identifies PHP2Shell exploitation prior to public disclosure in MadPot
AWS Security Blog
- Proof-of-concept exploit released for PHP vulnerabilities (CVE-2026-109618, CVE-2026-109619)
Sophos Counter Threat Unit
- Threat Brief: Critical Vulnerabilities in PHP: CVE-2026-109618, CVE-2026-109619
Palo Alto Networks Unit 42
News5
- PHP2Shell Exploitation Started Days Before Patches
SecurityWeek (Ionut Arghire)
- Someone Tried to Exploit PHP2Shell 4 Days Before the Vulnerabilities Were Publicly Disclosed
The Hacker News (Ravie Lakshmanan)
- PHP2Shell exploit bypasses protections designed to stop remote code execution
The Register (Jessica Lyons)
- PHP ships emergency patches for critical PHP2Shell flaws
BleepingComputer (Sergiu Gatlan)
- PHP2Shell: Critical PHP vulnerabilities patched, update now!
Help Net Security (Mirko Zorz)
Vendor1
Government2
Posts from X
Andrew Thompson
@ImposeCost
"The previous update (October 22 16:18 UTC) reported that Sophos observed successful exploitation of PHP2Shell in customer environments. Upon further analysis, we are correcting that assessment as Sophos customer telemetry shows scanning and a small number of failed exploitation attempts. As of this update, there is no evidence of a successful compromise due to these vulnerabilities." https://t.co/BC5caSSSiR
CISA Cyber
@CISACyber
🚨 Organizations should immediately patch critical PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619. These vulnerabilities enable unauthenticated #RCE and affect PHP installations serving web requests. Learn more: 🔗 https://t.co/8vu6SvNzfB https://t.co/LUWik7aQcG
Calif
@calif_io
Let’s set the record straight: @lcfr_hax was the first to discover php2shell and develop a working exploit. See his August 5 tweet: https://t.co/I88EQFrUHa His work convinced the PHP Foundation to invest in fixing this entire bug class. He then worked around the clock to review, test, and retest the patches.
Cloudflare
@Cloudflare
Cloudflare has deployed default web application firewall (WAF) protections for newly disclosed PHP vulnerabilities before public disclosure. The rules use request and response signals to stop exploit attempts and prevent exposed data from reaching attackers. https://t.co/OQG4x6x858
NCSC UK
@NCSC
The NCSC is encouraging UK organisations to prepare for immediate updating of systems using PHP. Where immediate remediation is not feasible, organisations should consider taking the system offline until it can be fully mitigated. For more⬇️ https://t.co/l6TDtVurJN
watchTowr
@watchtowrcyber
We were all supposed to wait until Thursday at 11am ET. Information has leaked wrt zero-day embargoed RCE vulns in PHP. We can confirm that they're real. CVE-2926-109618/619 We cannot share further information right now. Take this seriously and apply patches when available. https://t.co/kguM8fpq13
PoC index (for defenders)
Public proof-of-concept links for defensive validation, with a source and a validation status.
Open questions
PHP release date: 21 Oct news vs 22 Oct ChangeLog
php.net news posts say 21 Oct 2026, but ChangeLog-8.php says 22 Oct 2026. The GHSAs went out on 21 Oct at 13:34Z and the CVE records at 13:48 and 13:54Z. This page uses 21 Oct.
Planned embargo / release time: 21 Oct vs 22 Oct
The live php.net pre-announcement (20 Oct) says the release was scheduled for 21 Oct 14:00 UTC. watchTowr's 20 Oct post says everyone was meant to wait until 'Thursday at 11am ET' (22 Oct), and the earlier pack (Ubuntu) said 22 Oct 14:00 UTC. BleepingComputer reports that PHP brought the date forward after the leak, so the php.net page was likely edited. Unresolved.
watchTowr 'exploited in the wild' vs sprayed-PoC quote
watchTowr's own page says 'Exploited in the wild: Yes' based on its honeypots. The line that sprayed exploits don't work, only test timing, or crash the target comes only from an emailed statement by Jake Knott quoted by SecurityWeek, not a watchTowr publication. Both are dated; neither is collapsed into a single verdict here.
AWS vs PHP on EOL branches
AWS bulletin 2026-143-AWS says there is no fix for CVE-2026-109618 on end-of-life branches 5.4–8.1. PHP published source-only backports for 7.4, 8.0 and 8.1. This is unresolved.
The Register timestamp for the VulnCheck report
The Register page shows 'Published thu 22 Oct 2026 // 21:37 UTC', while its metadata says 20:37:52Z. This page uses the metadata time 2026-10-22T20:37:52Z. VulnCheck's ASLR-bypass exploit for CVE-2026-109618 is private (customers only); there is no public exploit link.
@php_net on X is not used
The @php_net account is unverified and its release posts link to php-net.pro ('The Dev Dispatch'), not php.net. Treat it as unofficial. This page does not cite it.
F5 advisory not re-fetched in this pass
F5 K000163821 is taken from this morning's pack (rendered with headless Chrome) and was not re-fetched in the 23 Oct 2026 11:10 SGT timeline/news pass.
Wiz vs PHP CVE-to-bug mapping
Wiz's bug-to-CVE mapping differs from PHP's GHSAs. This page uses PHP's mapping.
Discovery-priority claims are not ranked here
A Calif researcher (@lcfr_hax) posted a bare hash on 5 Aug 2026; Calif later pointed to it as proof he found and exploited the bug class first. Wiz gives its own discovery date of 19 Aug. Sophos says PHP received first reports on 11 Aug. Dated claims only.
Original research
- PHP Group: 21 Oct 2026 releases / advisory
PHP Group (php.net) · Dated 21 Oct 2026
- PHP Group: 20 Oct 2026 pre-announcement
PHP Group (php.net) · Dated 20 Oct 2026
- GHSA-w8hw-w9fx-j79w: CVE-2026-109618 RCE via OOM corruption
PHP (php-src GitHub, published by bukka) · Dated Oct 21, 2026
- GHSA-6wmf-4rv5-p3rp: CVE-2026-109619 RCE via stale global state
PHP (php-src GitHub, published by bukka) · Dated Oct 21, 2026
- PHP ChangeLog 8.x (lists the four releases as 22 Oct 2026)
PHP Group · Dated Version 8.x.y 22 Oct 2026
- CVE-2026-109618 CNA record
CVE (CNA: php) · Dated
- CVE-2026-109619 CNA record
CVE (CNA: php) · Dated
- CISA alert: Critical Vulnerabilities in PHP Require Immediate Patching
CISA · Dated Release Date October 21, 2026
- CISA KEV catalog JSON (neither CVE listed; catalog 2026.10.21)
CISA · Dated catalog 2026.10.21, released 21 Oct 2026, 14:04 UTC
- NVD: CVE-2026-109618 (CVSS 3.1 9.8, Analyzed)
NVD · Dated Analyzed / 22 Oct 2026, 23:18 UTC
- NVD: CVE-2026-109619 (CVSS 3.1 8.1, Modified)
NVD · Dated Modified / 22 Oct 2026, 23:18 UTC
- Palo Alto Networks PSIRT: impact on PAN products
Palo Alto Networks PSIRT · Dated Published 21 Oct 2026, Updated 23 Oct 2026
- Citrix TechZone: protecting NetScaler management access
NetScaler Product Security (Citrix TechZone) · Dated Last updated on: October 22, 2026 (PDT); first posted 21 Oct 2026 per page relative date
- Citrix CTX697263: other on-prem products (date not shown on source)
Cloud Software Group / Citrix · Dated not shown in fetched text (fetched 23 Oct 2026)
- F5 K000163821: PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619
F5 · Dated Published Oct 21, 2026, Updated Oct 23, 2026
- HPE HPESBNW05171: ClearPass Policy Manager
HPE Networking PSIRT · Dated Publication 2026-Oct-22, Last Updated 2026-Oct-22
- Splunk SVD-2026-1013
Splunk · Dated Published 22 Oct 2026, Last Updated 22 Oct 2026
- Cisco cisco-sa-php-october26-Jj384Daq
Cisco PSIRT · Dated First Published 2026 October 21 19:12 GMT; rev 1.4 2026-OCT-22
- Sophos advisory sophos-sa-20261021-php2shell
Sophos · Dated First Published 2026 Oct 21, Updated 2026 Oct 22
- Sophos CTU blog (includes 22 Oct 21:21 UTC correction)
Sophos Counter Threat Unit · Dated updates 21 Oct 14:28 UTC ... 22 Oct 21:21 UTC (correction)
- Wiz Research: PHP2Shell
Wiz Research · Dated October 21, 2026
- Imperva: PHP2Shell vulnerability updates (21 Oct)
Imperva (Nadav Avital, Bar Menachem) · Dated Oct 21, 2026
- Imperva: early attack activity (22 Oct telemetry)
Imperva · Dated Oct 22, 2026
- Unit 42 Threat Brief: CVE-2026-109618 / CVE-2026-109619
Palo Alto Networks Unit 42 · Dated Published October 21, 2026; updated Oct 22, 2026 4:30 p.m. PT
- watchTowr: PHP remote code execution (PHP2Shell)
watchTowr · Dated Published Oct 21, 2026 14:19 UTC; Last updated October 22, 2026
- watchTowr: CVE-2026-109618 FAQ
watchTowr · Dated Published Oct 20, 2026 19:35 UTC; Updated Oct 22, 2026
- watchTowr on X: reproduced, will not publish details
watchTowr (X) · Dated
- SecurityWeek quoting Jake Knott (watchTowr) on sprayed PoCs
SecurityWeek (Ionut Arghire), quoting watchTowr · Dated October 22, 2026 (5:48 AM ET)
- AWS: MadPot exploitation attempts prior to public disclosure
AWS Security Blog (CJ Moses) · Dated 21 OCT 2026
- AWS bulletin 2026-143-AWS
AWS · Dated Published 10/21/2026 14:30 PDT; Last Updated 10/22/2026 14:00 PDT
- AWS: using AWS WAF for PHP2Shell mitigations
AWS · Dated not shown in fetched text (fetched 23 Oct 2026)
- Calif (lcfr_hax): discovery-priority claim
Calif (X) · Dated
- NCSC: critical security issue affecting PHP
NCSC · Dated not shown in fetched text (fetched 23 Oct 2026)
- Ubuntu: PHP2Shell vulnerability fixes available
Ubuntu · Dated not shown in fetched text (fetched 23 Oct 2026)
- Datadog Security Labs: PHP2Shell
Datadog Security Labs · Dated not shown in fetched text (fetched 23 Oct 2026)
- oss-security list: PHP2Shell
oss-security · Dated not shown in fetched text (fetched 23 Oct 2026)