CVE-2026-12291 | Mozilla Firefox up to 151 HTTP use after free

June 16, 2026 Yanac

A vulnerability classified as critical was found in Mozilla Firefox up to 151. Affected by this vulnerability is an unknown functionality of the component HTTP. Such manipulation leads to use after free.

This vulnerability is traded as CVE-2026-12291. The attack may be launched remotely. There is no exploit available.

Upgrading the affected component is advised.VulDB Recent EntriesRead More