PHPXpertBees10 min read
PHP 8.1 and Older After the October 2026 RCE: Upgrade or Backport Guide
PHP 8.1 and older got no official fix for the October 2026 critical RCE vulnerabilities (CVE-2026-109618, CVE-2026-109619). Here are your three options: vendor backports, a guided upgrade to PHP 8.4, or temporary mitigations if you cannot move yet.
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