High [CVE-2026-109619] fatal error handling retains stale request state leading to use-after-free
This high-severity Red Hat Linux advisory covers CVE-2026-109619; related products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 9.
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Summary
fatal error handling retains stale request state leading to use-after-free. Red Hat rates this important (CVSS 8.1).
Weakness: CWE-416. Red Hat lists fixing advisory RHSA-2026:87070 with package php-0:8.3.36-1.el10_2, php8.4-0:8.4.27-1.el10_2, php:7.4-8060020261022162503.5caa48ff, php-0:8.3.19-1.el10_0.2.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 9.
CISA Known Exploited Vulnerability
- Listed:
- Oct 26, 2026 · federal remediation due Oct 29, 2026
- Required action:
- Apply 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.
KEV is a prioritization signal from CISA. Remediation detail comes from the vendor advisory.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
- php-0:8.3.36-1.el10_2
- php8.4-0:8.4.27-1.el10_2
- php:7.4-8060020261022162503.5caa48ff
- php-0:8.3.19-1.el10_0.2
- php:7.4-8080020261022122801.0b4eb31d
- php-0:5.4.16-48.el7_9.1
- php:7.4-8100020261021081045.f7998665
- php:8.3-9060020261022173106.9
- php:8.2-9080020261020145734.9
- php:8.2-9040020261023103113.9
- php-0:8.0.30-1.el9_2.2
- php:8.2-9060020261023092136.9
- php-0:8.0.30-1.el9_4.2
- php-main-8.5.12-1.hum1
- php:8.3-9080020261020115403.9
- php:7.4-8040020261022145802.d7c09045
- php-0:8.0.30-8.el9_8.1
- php:8.2-8100020261020140951.f7998665
- php-0:8.0.30-3.el9_6.2
- RHSA-2026:87070
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
Mitigation checklist
- See the security bulletin for a detailed mitigation procedure.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
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