VULNERABILITY INTELLIGENCE
CVE-2026-62672
EPSS probability0.38%
CISA KEVNot currently listed
Published2026-08-19
Last modified2026-09-09
Description
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.
Weakness classification
- security-advisories@github.com: CWE-1333