CVE-2026-84129 | Mozilla Firefox up to 153.1/154 Navigation isolation (Nessus ID 342312 / WID-SEC-2026-3132)
A vulnerability was found in Mozilla Firefox up to 153.1/154. It has been rated as critical. Affected by this issue is some unknown functionality of the component Navigation Component. The manipulation leads to improper isolation or compartmentalization.
This vulnerability is uniquely identified as CVE-2026-84129. The attack is possible to be carried out remotely. No exploit exists.
Upgrading the affected component is advised.