CVE-2026-100829 PUBLISHED

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.

• Rintaro Kawasugi

• https://bugzilla.mozilla.org/show_bug.cgi?id=2066321
• https://www.mozilla.org/security/advisories/mfsa2026-100/
• https://www.mozilla.org/security/advisories/mfsa2026-97/