{"id":"EM-20261104-VRXN","url":"https://cyber.eventmonitor.net/incident/EM-20261104-VRXN/critical-cgi-cookie-vulnerability-cve-2026-120644/","type":"cve","title":"Critical CGI::Cookie Vulnerability (CVE-2026-120644)","subtitle":"CVE-2026-120644","subject":"CVE-2026-120644","status":"Developing","severity":"critical","affected":[],"headline":null,"born":"2026-11-04T00:17:25.897Z","firstSignal":"2026-11-03T23:40:51.000Z","lastSignal":"2026-11-04T00:17:25.897Z","updated":"2026-11-09T20:54:22.269Z","revision":1,"life":[{"status":"Born","at":"2026-11-04T00:17:25.897Z","why":"second independent source: C6 NVD CVE API 2.0"},{"status":"Developing","at":"2026-11-04T00:17:25.897Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-03T23:40:51.000Z","what":"First signal: C41 Red Hat Security Data"},{"at":"2026-11-04T00:17:25.897Z","what":"Born: second source, C6 NVD CVE API 2.0. Page EM-20261104-VRXN created."},{"at":"2026-11-04T00:17:25.897Z","what":"Severity raised to Critical by C6"}],"stages":[{"name":"Disclosed","at":"2026-11-04T00:17:25.897Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-04T00:17:25.897Z","detail":"CVSS 9.1 · EPSS 0.2%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":"2026-11-03T23:40:51.000Z","detail":"C41 published"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-03T23:40:51.000Z","source":"C41","sourceName":"Red Hat Security Data","role":"Vendor","severity":2,"title":"Red Hat: CVE-2026-120644 (moderate)","text":"perl-cgi: perl-cgi: Cookie attribute injection via unvalidated parameters","url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-120644.json"},{"at":"2026-11-04T00:17:25.897Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":4,"title":"CVE-2026-120644 (CVSS 9.1)","text":"CGI::Cookie versions before 5.00 for Perl allow cookie attribute injection via unvalidated path, domain and expires values.\n\nThe path, domain and expires values are written into the Set-Cookie header without checking for semicolons or control characters.\n\nAn application that sets them from request data can be made to add other cookie attributes, such as Domain or SameSite.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120644"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-04T00:17:25.897","score":9.1,"severity":"CRITICAL","desc":"CGI::Cookie versions before 5.00 for Perl allow cookie attribute injection via unvalidated path, domain and expires values.\n\nThe path, domain and expires values are written into the Set-Cookie header without checking for semicolons or control characters.\n\nAn application that sets them from request…","product":"","seen":1794257662269},"kev":null,"epss":{"epss":0.00205,"pct":0.10597,"at":1793803438877},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}