Apple patches a network Screen Sharing authentication bypass in macOS Tahoe 26.6.1

Sources: primary, discussion
Summary: Apple's advisory for macOS Tahoe 26.6.1, released 2026-08-06, covers CVE-2026-65400 in Screen Sharing. Apple states an attacker on the network may be able to authenticate to Screen Sharing without valid credentials, scopes the entry as available for macOS Tahoe, and describes the fix as an authentication issue addressed with improved state management. Apple credits Alfredo Pesoli, via Bynario Atlas.
Why it matters: Any Mac with Screen Sharing enabled on a shared network needs 26.6.1, and the advisory predates this digest by five days.