CVE-2026-124931 | Mozilla Firefox up to 153.6/159 DOM cross-domain policy

November 10, 2026 Yanac

A vulnerability was found in Mozilla Firefox up to 153.6/159 and classified as problematic. This affects an unknown function of the component DOM. Executing a manipulation can lead to permissive cross-domain policy with untrusted domains.

This vulnerability appears as CVE-2026-124931. The attack may be performed from remote. There is no available exploit.

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