Vulnerability Description
Mitigation bypass in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 156, 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=2058417
- https://www.mozilla.org/security/advisories/mfsa2026-90/
- 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-2026-92030?
CVE-2026-92030 is a documented vulnerability. Mitigation bypass in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thund...
How severe is CVE-2026-92030?
CVSS scoring is not yet available for CVE-2026-92030. Check NVD for updates.
Is there a patch for CVE-2026-92030?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.