{"id":"EM-20261104-UDRH","url":"https://cyber.eventmonitor.net/incident/EM-20261104-UDRH/cgi-cookie-vulnerability-cve-2026-120631/","type":"cve","title":"CGI::Cookie Vulnerability (CVE-2026-120631)","subtitle":"CVE-2026-120631","subject":"CVE-2026-120631","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-04T00:17:24.187Z","firstSignal":"2026-11-03T23:39:55.000Z","lastSignal":"2026-11-04T00:17:24.187Z","updated":"2026-11-09T19:33:27.959Z","revision":1,"life":[{"status":"Born","at":"2026-11-04T00:17:24.187Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-04T00:17:24.187Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-03T23:39:55.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-04T00:17:24.187Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261104-UDRH created."}],"stages":[{"name":"Disclosed","at":"2026-11-04T00:17:24.187Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-04T00:17:24.187Z","detail":"CVSS 7.5 · EPSS 0.4%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-03T23:39:55.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-03T23:39:55.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":3,"title":"Red Hat: CVE-2026-120631 (important)","text":"perl-cgi: perl-cgi: Denial of Service via unescaped cookie expiration attribute","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-120631.json"},{"at":"2026-11-04T00:17:24.187Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-120631 (CVSS 7.5)","text":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse.\n\nCGI's cookie method reads the Cookie request header through parse, which interpolates the header's expires value unescaped into the substitution pattern that removes it from the cookie string.\n\nA client can make the request die with an invalid pattern, or tie up the process with one that backtracks catastrophically.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120631"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-04T00:17:24.187","score":7.5,"severity":"HIGH","desc":"CGI::Cookie versions from 4.67 before 5.00 for Perl allow denial of service via the client cookie expires value used as a regex in parse.\n\nCGI's cookie method reads the Cookie request header through parse, which interpolates the header's expires value unescaped into the substitution pattern that…","product":"","seen":1794252807959},"kev":null,"epss":{"epss":0.00389,"pct":0.33129,"at":1793803438877},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}