CVE-2026-100818 | Mozilla Firefox up to 140.16/153.3/156 Gtk use after free

A vulnerability classified as critical has been found in Mozilla Firefox up to 140.16/153.3/156. Affected by this vulnerability is an unknown functionality of the component Gtk. The manipulation leads to use after free.

This vulnerability is traded as CVE-2026-100818. It is possible to initiate the attack remotely. There is no exploit available.

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