CVE-2026-62672 — Grav: Authenticated ReDoS via regex_replace in Twig Sandbox
Grav is a file-based Web platform. Prior to 2.0.4, Grav allowlists the regex_replace filter and function in system/config/security.yaml, and GravExtension::regexReplace() passes…
Published: 2026-08-19 · CVSS: 6.0 · CVSS 4.0
Grav is a file-based Web platform. Prior to 2.0.4, Grav allowlists the regex_replace filter and function in system/config/security.yaml, and GravExtension::regexReplace() passes an editor-controlled pattern directly to preg_replace(). When security.twig_content.process_enabled is enabled, an authenticated page editor can publish a catastrophically backtracking pattern that consumes PHP worker CPU and denies service to site visitors. This issue is fixed in version 2.0.4.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7