Critical 9.2Known exploited (CISA KEV)Published Oct 21, 2026

CVE-2026-109619RCE via stale global state

Updated under an hour ago (Oct 28, 2026, 6:10 AM ET)

Does this affect you?

It affects PHP Group PHP and 5 other products. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Oct 26, 2026; federal agencies must remediate by Oct 29, 2026. Treat that date as your deadline.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for PHP Group PHP

Exploited in the last 30 days

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).

CVSS: 9.2 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-416, CWE-755, CWE-824, CWE-1325, CWE-1419
Known exploited: Added to CISA KEV Oct 26, 2026; federal remediation due Oct 29, 2026Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
EPSS (exploitation in the next 30 days): 100.00% (percentile 100)
Assigned by: php
NVD analysis: Analyzed
Record last updated: Oct 27, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

PHP Group PHP php_group:php (from the name)	from 8.2.* before 8.2.35; from 8.3.* before 8.3.36; from 8.4.* before 8.4.27; from 8.5.* before 8.5.12	CNA record
Siemens RUGGEDCOM APE1808 siemens:ruggedcom_ape1808 (from the name)	all versions	CISA ADP
php php php:php	from 5.4.0 before 8.2.35; from 8.3.0 before 8.3.36; from 8.4.0 before 8.4.27; from 8.5.0 before 8.5.12	NVD
siemens ruggedcom_ape1808_firmware siemens:ruggedcom_ape1808_firmware	all versions	NVD
paloaltonetworks pan-os paloaltonetworks:pan-os	from 10.2.0 before 10.2.7; 10.2.7; 10.2.7; 10.2.7; 10.2.7; 10.2.7; 10.2.7; 10.2.7; and 193 more ranges	NVD
paloaltonetworks panorama_virtual_appliance paloaltonetworks:panorama_virtual_appliance	all versions	NVD

References

References

https://github.com/php/php-src/security/advisories/GHSA-6wmf-4rv5-p3rp	vendor-advisory, mitigation
http://www.openwall.com/lists/oss-security/2026/10/21/16	mailing-list, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/10/21/17	mailing-list, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/10/21/23	mailing-list, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/10/21/7	mailing-list, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/10/22/14	mailing-list, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/10/22/15	mailing-list, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/10/22/16	mailing-list, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/10/22/19	mailing-list, third-party-advisory
http://www.openwall.com/lists/oss-security/2026/10/22/2	mailing-list, third-party-advisory
1–10 of 17

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.