Description
PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE).
Published: 2026-10-21
Score: 9.2 Critical
EPSS: 5.3% Low
KEV: No
AI Analysis

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Remediation

Vendor Workaround

Check the GitHub Security Advisory for mitigation strategies.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4848-1 php8.2 security update
Debian DSA Debian DSA DSA-6574-1 php8.4 security update
Ubuntu USN Ubuntu USN USN-8948-1 PHP vulnerabilities
Ubuntu USN Ubuntu USN USN-8948-2 PHP vulnerabilities
History

Thu, 22 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/a:redhat:hummingbird:1
cpe:/o:redhat:enterprise_linux:10.2
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
References
Metrics threat_severity

None

threat_severity

Important


Wed, 21 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
References

Wed, 21 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Php
Php php
CPEs cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
Vendors & Products Php
Php php
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 21 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE).
Title RCE via OOM corruption
Weaknesses CWE-1325
CWE-1419
CWE-416
CWE-755
CWE-824
References
Metrics cvssV4_0

{'score': 9.2, 'vector': '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'}


Subscriptions

Php Php
Redhat Enterprise Linux Hummingbird
cve-icon MITRE

Status: PUBLISHED

Assigner: php

Published:

Updated: 2026-10-21T16:07:52.535Z

Reserved: 2026-10-12T21:03:58.117Z

Link: CVE-2026-109618

cve-icon Vulnrichment

Updated: 2026-10-21T16:07:52.535Z

cve-icon NVD

Status : Modified

Published: 2026-10-21T14:17:09.357

Modified: 2026-10-22T10:09:59.800

Link: CVE-2026-109618

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-21T14:00:00Z

Links: CVE-2026-109618 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T15:15:07Z