Vulnerability Description
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2075296
- https://www.mozilla.org/security/advisories/mfsa2026-118/
- https://www.mozilla.org/security/advisories/mfsa2026-121/
FAQ
What is CVE-2026-118007?
CVE-2026-118007 is a documented vulnerability. Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
How severe is CVE-2026-118007?
CVSS scoring is not yet available for CVE-2026-118007. Check NVD for updates.
Is there a patch for CVE-2026-118007?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.