CVE-2026-20643 | Apple macOS/iOS/iPadOS prior 26.3.1 (a)/26.3.2 (a) cross-domain policy (WID-SEC-2026-0762)
A vulnerability was found in Apple macOS, iOS and iPadOS. It has been rated as critical. Affected is an unknown function. The manipulation leads to permissive cross-domain policy with untrusted domains.
This vulnerability is traded as CVE-2026-20643. It is possible to initiate the attack remotely. There is no exploit available.
Upgrading the affected component is advised.