CVE-2026-124910 | Mozilla Firefox up to 153.6/159 WebExtensions incorrect user management

November 10, 2026 Yanac

A vulnerability was found in Mozilla Firefox up to 153.6/159 and classified as critical. This affects an unknown part of the component WebExtensions. The manipulation results in incorrect user management.

This vulnerability is known as CVE-2026-124910. It is possible to launch the attack remotely. No exploit is available.

It is suggested to upgrade the affected component.VulDB Recent EntriesRead More