CVE-2026-109619 (GCVE-0-2026-109619)

Vulnerability from cvelistv5 – Published: 2026-10-21 13:54 – Updated: 2026-10-21 16:07
VLAI
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 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).
Severity
9.2 (Critical)
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
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 14:34 UTC
CWE
  • CWE-416 - Use after free
  • CWE-755 - Improper Handling of Exceptional Conditions
  • CWE-824 - Access of uninitialized pointer
  • CWE-1325 - Improperly controlled sequential memory allocation
  • CWE-1419 - Incorrect Initialization of Resource
Assigner
php CNA under the mitre root
CNA scorecard B 81/100 over 27 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
PHP Group PHP Affected: 8.2.* , < 8.2.35 (semver)
Affected: 8.3.* , < 8.3.36 (semver)
Affected: 8.4.* , < 8.4.27 (semver)
Affected: 8.5.* , < 8.5.12 (semver)
guessed Create a notification for this product.
Credits
Wiz Ryan at Calif.io OpenAI Arnaud Le Blanc Ilija Tovilo Jakub Zelenka Nora Dossche
Show details on NVD website
To clipboard 

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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.