Critical · CVSS 9.2CVE-2026-109619

RCE via stale global stateCVE-2026-109619

Answer in brief

CVE-2026-109619 records a Critical severity (CVSS 9.2) vulnerability in RCE via stale global state. The current sources do not mark it as known exploited. The current feed maps PHP Group/PHP (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 21, 2026Updated Oct 21, 2026Source checked Oct 21, 2026First seen by HOL Oct 21, 2026Material review Oct 21, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.2
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 9.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps PHP Group/PHP (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
PHP Group/PHPgeneric	>=8.2.* <8.2.35 \|\| >=8.3.* <8.3.36 \|\| >=8.4.* <8.4.27 \|\| >=8.5.* <8.5.12	8.2.35, 8.3.36, 8.4.27, 8.5.12

Recommended response

Check inventory. Check lockfiles and deployed manifests for PHP Group/PHP.
Review the reported fix. Source-reported workaround: Check the GitHub Security Advisory for mitigation strategies.

Evidence timeline and material changes

Published upstream
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 21, 2026

Sources and claim methodology

Upstream source 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).

Quoted source text, attributed separately from HOL analysis.

RCE via OOM corruptionSame php group/php package