CRITICALVulnerability
Verified
Global

NVD CRITICAL: CVE-2026-109618 — PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context an...

·Source: NIST NVD

Updated:

Executive Summary

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 le

Analysis

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). CVSS Score: 9.8. Published: 2026-10-21T14:17:09.357.

Indicators of Compromise (1)

CVE (1)
CVE-2026-109618
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Oct 21, 2026. Verified by: NIST.

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