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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.

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