CVE-2026-4722

Description

Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2010097 ↗
• https://www.mozilla.org/security/advisories/mfsa2026-20/ ↗
• https://www.mozilla.org/security/advisories/mfsa2026-23/ ↗