CVE-2026-53900 | Mozilla Firefox up to 151.x on iOS cross-domain policy

June 16, 2026 Yanac

A vulnerability was found in Mozilla Firefox up to 151.x on iOS. It has been declared as problematic. This impacts an unknown function. Executing a manipulation can lead to permissive cross-domain policy with untrusted domains.

The identification of this vulnerability is CVE-2026-53900. The attack may be launched remotely. There is no exploit available.

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