{"id":"CVE-2026-62237","revision":"6a358038b52e434aa2db1cdc3ec7c14e","records":[{"revision":"6a358038b52e434aa2db1cdc3ec7c14e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-62237","aliases":[],"title":"Grav < 2.0.4 ReDoS via regex_replace in Sandbox","description":"Grav before 2.0.4 contains a regular expression denial of service (ReDoS) vulnerability in the regex_replace filter and function, which are allowlisted in the Twig content sandbox. When Twig processing in page content is enabled (security.twig_content.process_enabled: true, disabled by default), an authenticated page editor can supply a catastrophically backtracking PCRE pattern that is passed directly to PHP's preg_replace(), causing unbounded CPU consumption and denial of service to the web server process.","state":0,"publishedAt":"2026-07-17T00:07:11.756+00:00","modifiedAt":"2026-10-08T15:23:44.868+00:00","affected":[{"ecosystem":"Vendor product","name":"grav","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"getgrav\",\n                    \"product\": \"grav\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.0.4\"\n                        },\n                        {\n                            \"version\": \"2.0.4\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/getgrav/grav\",\n                    \"packageURL\": \"pkg:composer/getgrav/grav\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":6,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/getgrav/grav/security/advisories/GHSA-37f3-6p89-6qr9","https://www.vulncheck.com/advisories/grav-redos-via-regex-replace-in-sandbox"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-62237","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-62237","identifiers":["CVE-2026-62237"]},"retained":false,"historicalAffected":[]}],"coverage":[]}