CVE-2026-109619: CWE-416 Use after free in PHP Group PHP
Description
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 v4.0
Score 9.2critical
Affected software
PHP Group
PHP
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
PHP contains global state pointers that temporarily reference request memory. In some scenarios, this global state is not properly reset or is repopulated after being reset, causing it to point to memory that has already been freed. Subsequent requests may then read or branch based on this stale state before it is fully initialized. Multiple exploitation strategies exist that can trigger this condition, potentially resulting in remote code execution. The CVSS 4.0 score is 9.2, indicating a critical severity level. No affected versions or patch information are provided in the data.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution without requiring privileges or user interaction. The vulnerability arises from use-after-free conditions in PHP's global state management, which can be triggered remotely. This poses a critical risk to systems running vulnerable PHP versions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Until a patch is available, monitor vendor communications for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- php
- Date Reserved
- 2026-10-12T21:04:00.504Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad8c5a24d27ba8daab0d95e
Added to database: 10/21/2026, 14:01:06 UTC
Last enriched: 10/21/2026, 14:15:16 UTC
Last updated: 10/21/2026, 15:01:44 UTC
Views: 7
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.