{"id":"CVE-2026-117958","aliases":[],"title":"Site isolation issue in the Networking: HTTP component","description":"Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.","severity":"unknown","score":null,"published":"2026-10-27T14:05:39.645Z","modified":"2026-10-27T18:29:41.393Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2061509","https://www.mozilla.org/security/advisories/mfsa2026-118/","https://www.mozilla.org/security/advisories/mfsa2026-120/","https://www.mozilla.org/security/advisories/mfsa2026-121/","https://www.mozilla.org/security/advisories/mfsa2026-122/"],"sources":[{"name":"CVE","id":"CVE-2026-117958","modified":"2026-10-27T18:29:41.393Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-117958"}],"assessments":[]}