CVE-2026-109618

PHP Memory Corruption Vulnerability

Php

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).

21. Okt 2026

Ausgewertete Quellen

• Hinweis
  http://www.openwall.com/lists/oss-security/2026/10/21/6
• Hinweis
  http://www.openwall.com/lists/oss-security/2026/10/23/5
• Hinweis
  https://arcticwolf.com/resources/blog/php2shell-critical-php-vulnerabilities-enable-unauthenticated-remote-code-execution/
• Hinweis
  https://cert-portal.siemens.com/productcert/html/ssa-166980.html
• Hinweis
  https://cert-portal.siemens.com/productcert/html/ssa-566435.html
• Hinweis
  https://cert-portal.siemens.com/productcert/html/ssa-566512.html
• Hinweis
  https://php2shell.delftintellab.com
• Hinweis
  https://www.wiz.io/blog/php2shell-php-rce
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-109618
• CISA
  PHP Memory Corruption Vulnerability
• NVD
  CVE-2026-109618
• GitHub
  https://github.com/php/php-src/security/advisories/GHSA-w8hw-w9fx-j79w