ANCHORE-2026-8962

ANCHORE-2026-8962 PUBLISHED

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Affected Products

Vendor	Product	Versions
Mozilla	Thunderbird	116, 141
Mozilla	Firefox	116, 141

Timeline

May 19, 2026 CVE Published
May 19, 2026 CVE Updated

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2004804 url
https://www.mozilla.org/security/advisories/mfsa2026-46/ url
https://www.mozilla.org/security/advisories/mfsa2026-48/ url
https://www.mozilla.org/security/advisories/mfsa2026-50/ url
https://www.mozilla.org/security/advisories/mfsa2026-51/ url

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