---
id: CVE-2026-109619
title: RCE via stale global state
summary: >-
  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 i…
severity: critical
cvss: 9.2
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-416
  - CWE-755
  - CWE-824
  - CWE-1325
  - CWE-1419
vendor: PHP Group
product: php-src
affected:
  - php-src >= 8.2.* < 8.2.35
  - php-src >= 8.3.* < 8.3.36
  - php-src >= 8.4.* < 8.4.27
  - php-src >= 8.5.* < 8.5.12
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-21T14:34:42.468059Z'
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T18:10:07.691Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-109619'
references:
  - url: 'https://github.com/php/php-src/security/advisories/GHSA-6wmf-4rv5-p3rp'
tags:
  - cve.org
ingestedAt: '2026-10-21T15:02:42.099Z'
---

## Overview

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).

## Affected

- `php-src >= 8.2.* < 8.2.35`
- `php-src >= 8.3.* < 8.3.36`
- `php-src >= 8.4.* < 8.4.27`
- `php-src >= 8.5.* < 8.5.12`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

Check the GitHub Security Advisory for mitigation strategies.