Vulnerability Description
Mitigation bypass in the Remote Settings Client 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.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2065636
- https://www.mozilla.org/security/advisories/mfsa2026-90/
- https://www.mozilla.org/security/advisories/mfsa2026-91/
- https://www.mozilla.org/security/advisories/mfsa2026-92/
- https://www.mozilla.org/security/advisories/mfsa2026-93/
- https://www.mozilla.org/security/advisories/mfsa2026-94/
- https://www.mozilla.org/security/advisories/mfsa2026-95/
- https://www.mozilla.org/security/advisories/mfsa2026-96/
FAQ
What is CVE-2026-92019?
CVE-2026-92019 is a documented vulnerability. Mitigation bypass in the Remote Settings Client 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, ...
How severe is CVE-2026-92019?
CVSS scoring is not yet available for CVE-2026-92019. Check NVD for updates.
Is there a patch for CVE-2026-92019?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.