CVE-2026-100797 | Mozilla Firefox up to 115.41/140.16/153.3/156 WebRender use after free

September 29, 2026 Yanac

A vulnerability classified as critical has been found in Mozilla Firefox up to 115.41/140.16/153.3/156. Impacted is an unknown function of the component WebRender. This manipulation causes use after free.

This vulnerability is handled as CVE-2026-100797. The attack can be initiated remotely. There is not any exploit available.

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