CVE-2026-109776

Description

Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2069395
• https://www.mozilla.org/security/advisories/mfsa2026-106/
• https://www.mozilla.org/security/advisories/mfsa2026-108/