CVE-2026-16349 | Mozilla Firefox up to 115.37/140.12/152 Navigation cross-domain policy

July 21, 2026 Yanac

A vulnerability was found in Mozilla Firefox up to 115.37/140.12/152. It has been declared as problematic. The affected element is an unknown function of the component Navigation. Executing a manipulation can lead to permissive cross-domain policy with untrusted domains.

This vulnerability appears as CVE-2026-16349. The attack may be performed from remote. There is no available exploit.VulDB Recent EntriesRead More