{"id":"CVE-2026-62672","aliases":["CVE-2026-62237","GHSA-37f3-6p89-6qr9"],"url":"https://o3.security/vulnerability/CVE-2026-62672","summary":"Grav: Authenticated ReDoS via regex_replace in Twig Sandbox","details":"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.","published":"2026-08-19T15:44:36.287Z","modified":"2026-08-21T03:46:20.732368108Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"getgrav/grav","fixedVersion":"2.0.4"}],"fix":{"url":"https://github.com/getgrav/grav/commit/907116268ad4f48be7472c57f64981918578599a","label":"getgrav/grav@9071162"},"references":[{"type":"WEB","url":"https://github.com/getgrav/grav/releases/tag/2.0.4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62672.json"},{"type":"ADVISORY","url":"https://github.com/getgrav/grav/security/advisories/GHSA-37f3-6p89-6qr9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62672"},{"type":"FIX","url":"https://github.com/getgrav/grav/commit/907116268ad4f48be7472c57f64981918578599a"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-21T03:46:20.732368108Z"}}