{"id":"CVE-2026-92018","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-92018","summary":"Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird…","details":"Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.","published":"2026-09-15T13:16:51.540","modified":"2026-09-20T01:16:34.680","cvss":{"score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2064287"},{"type":"WEB","url":"https://www.mozilla.org/security/advisories/mfsa2026-90/"},{"type":"WEB","url":"https://www.mozilla.org/security/advisories/mfsa2026-91/"},{"type":"WEB","url":"https://www.mozilla.org/security/advisories/mfsa2026-92/"},{"type":"WEB","url":"https://www.mozilla.org/security/advisories/mfsa2026-93/"},{"type":"WEB","url":"https://www.mozilla.org/security/advisories/mfsa2026-94/"},{"type":"WEB","url":"https://www.mozilla.org/security/advisories/mfsa2026-95/"},{"type":"WEB","url":"https://www.mozilla.org/security/advisories/mfsa2026-96/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-20T01:16:34.680"}}