CVE-2026-0881 | Mozilla Firefox up to 146 Messaging System sandbox

January 13, 2026 Yanac

A vulnerability marked as critical has been reported in Mozilla Firefox up to 146. This issue affects some unknown processing of the component Messaging System. Performing a manipulation results in sandbox issue.

This vulnerability is known as CVE-2026-0881. Remote exploitation of the attack is possible. No exploit is available.

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