RCE via OOM corruption
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).
CVE-2026-109618
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109618
PHP
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "PHP Group",
"product": "PHP",
"versions": [
{
"status": "affected",
"version": "8.2.*",
"lessThan": "8.2.35",
"versionType": "semver"
},
{
"status": "affected",
"version": "8.3.*",
"lessThan": "8.3.36",
"versionType": "semver"
},
{
"status": "affected",
"version": "8.4.*",
"lessThan": "8.4.27",
"versionType": "semver"
},
{
"status": "affected",
"version": "8.5.*",
"lessThan": "8.5.12",
"versionType": "semver"
}
],
"packageName": "php-src",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109618
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #52962 · Revision 1
- Added to Heist Feed
- Publisher date