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macOS 26.6.1

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26.6โ†’26.6.1SecurityBug fix
๐Ÿ“… August 6, 2026๐Ÿ—‚ Operating Systems๐Ÿ“ฆ macOS โ†—๐Ÿ“œ Full changelog โ†—
โœฆ Editor's summary

macOS Tahoe 26.6.1 is an important security update addressing an authentication vulnerability in Screen Sharing. The flaw could allow an attacker on the same network to authenticate to Screen Sharing without valid credentials. Apple recommends the update for all macOS Tahoe users.

โš  Security impact
  • CVE-2026-65400: Fixed an authentication vulnerability in Screen Sharing.
  • An attacker on the network could potentially authenticate to Screen Sharing without valid credentials.
  • Apple addressed the vulnerability by improving state management within the Screen Sharing authentication process.

What's new

macOS Tahoe 26.6.1 is an important security update that addresses a vulnerability affecting the Screen Sharing functionality in macOS.

Security fixes
  • Fixed CVE-2026-65400, an authentication vulnerability affecting Screen Sharing.
  • Resolved an issue where an attacker on the network could potentially authenticate to Screen Sharing without valid credentials.
  • Improved state management to strengthen the Screen Sharing authentication process.
Recommendation

Apple recommends macOS Tahoe 26.6.1 for all users. Organizations using Screen Sharing or operating Macs on shared or potentially untrusted networks should prioritize deployment of this update.

More from macOS
macOS 26.6SecurityBug fixPerformanceJul 27, 2026
macOS 26.5.2SecurityBug fixJun 29, 2026
Latest in Operating Systems
Windows 11: Windows 11 26H1 KB5101681FeatureBug fixPerformanceJul 28, 2026
iOS: iOS 26.6SecurityBug fixPerformanceJul 27, 2026
watchOS: watchOS 26.6SecurityBug fixPerformanceJul 27, 2026
iPadOS: iPadOS 26.6SecurityBug fixPerformanceJul 27, 2026
Windows 11: Windows 11 26H1 KB5101649SecurityBug fixPerformanceJul 15, 2026

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