CVE-2026-100804 | Mozilla Firefox up to 156 Preferences Backend use after free

A vulnerability classified as critical was found in Mozilla Firefox up to 156. This impacts an unknown function of the component Preferences Backend. Executing a manipulation can lead to use after free.

This vulnerability is handled as CVE-2026-100804. The attack can be executed remotely. There is not any exploit available.

Upgrading the affected component is advised.VulDB Recent EntriesRead More