{"id":"CVE-2026-118008","published":"2026-10-27T14:16:58.603","lastModified":"2026-10-28T04:17:59.213","description":"Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-269"],"vendors":[],"products":[],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2075440","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-118/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-121/","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A privilege escalation flaw in Firefox and Thunderbird's DOM Navigation component allowed unprivileged web content to gain elevated privileges by manipulating navigation behavior, potentially leading to full system compromise.","exploitability":"Exploitation requires user interaction (e.g., visiting a malicious website) and relies on specific internal DOM navigation logic being misused; no known public exploit exists.","blast_radius":"Successful exploitation could enable attackers to execute arbitrary code with elevated privileges, compromising confidentiality, integrity, and availability of the affected application and potentially the host system.","remediation":"Upgrade to Firefox 159 or later, or Thunderbird 159 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["privilege-escalation","dom","web-browser","cwe-269"],"model":"garnet-coder","analyzedAt":"2026-10-29T08:49:36.134Z"}}