Apple just patched a Mac security flaw. You should probably update today
Apple has released macOS updates fixing a Screen Sharing vulnerability that could allow attackers on the network to bypass authentication.
Apple has released a set of security updates for macOS to address a vulnerability in its built-in Screen Sharing feature. The flaw, tracked as CVE-2026-65400, could allow an attacker on the same network to bypass authentication and gain access to Screen Sharing without valid credentials. Apple has released macOS Tahoe 26.6.1, macOS Sequoia 15.7.9, and macOS Sonoma 14.8.9 to patch the vulnerability.
While the circumstances around the patch make it worth installing, there is no public proof-of-concept exploit available and Apple says it is not aware of the flaw being exploited outside test environments. Users who have not manually enabled Screen Sharing are not impacted.
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