{"id":"CVE-2026-2784","details":"Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox \u003c 148, Firefox ESR \u003c 140.8, Thunderbird \u003c 148, and Thunderbird \u003c 140.8.","modified":"2026-04-16T04:36:42.303196556Z","published":"2026-02-24T14:16:26.847Z","related":["ALSA-2026:3338","ALSA-2026:3339","ALSA-2026:3361","ALSA-2026:3515","ALSA-2026:3516","ALSA-2026:3517","SUSE-SU-2026:0812-1","SUSE-SU-2026:0871-1","SUSE-SU-2026:0880-1","openSUSE-SU-2026:10242-1","openSUSE-SU-2026:10248-1","openSUSE-SU-2026:10257-1","openSUSE-SU-2026:20365-1","openSUSE-SU-2026:20391-1"],"references":[{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2026-13/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2026-15/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2026-16/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2026-17/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2012984"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2784.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"140.8.0"}]},{"events":[{"introduced":"0"},{"fixed":"148.0"}]},{"events":[{"introduced":"0"},{"fixed":"140.8.0"}]},{"events":[{"introduced":"0"},{"fixed":"148.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}