macOS Tahoe 26.3 Security Update

What macOS Tahoe 26.3 Fixes

macOS Tahoe 26.3, released February 11, 2026, fixes 65 vulnerabilities in 44 parts of the system, according to Apple's security advisory.

Apple says one of these flaws — CVE-2026-20700 — may already have been exploited. That makes macOS Tahoe 26.3 an update to install now rather than at the weekend.

It has since been superseded: the newest security release for macOS Tahoe is macOS Tahoe 26.7.2, from October 26, 2026, which includes these fixes.

Grouped by us from the impact Apple gives for each fix; the impact lines below are Apple's own.

Exploited Before the Fix

Apple flags a fix as possibly exploited when it has a credible report that the flaw was used against real people before the patch. This one is the reason to update today.

• dyld Exploited

  An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.

  A memory corruption issue was addressed with improved state management.

  CVE-2026-20700

Which Devices Get macOS Tahoe 26.3

Apple lists macOS Tahoe 26.3 for: macOS Tahoe.

How to Install macOS Tahoe 26.3

On the Mac, open System Settings → General → Software Update. Macs that cannot run the newest macOS are offered the update for their own version there.

Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past macOS Tahoe 26.3 there is nothing to do.

Every Fix in macOS Tahoe 26.3

The rest of Apple's advisory — every fix not already listed above, the most serious kinds first. Each entry is the part of the system affected, Apple's description of the impact and the fix, and the CVE ID.

• Bluetooth

  An attacker in a privileged network position may be able to perform denial-of-service attack using crafted Bluetooth packets

  A denial-of-service issue was addressed with improved validation.

  CVE-2026-20650

• CoreServices

  An app may be able to gain root privileges

  A race condition was addressed with improved state handling.

  CVE-2026-20617

• CoreServices

  An app may be able to gain root privileges

  A path handling issue was addressed with improved validation.

  CVE-2026-20615

• GPU Drivers

  An attacker may be able to cause unexpected system termination or read kernel memory

  An out-of-bounds read issue was addressed with improved input validation.

  CVE-2026-20620

• Kernel

  A malicious app may be able to gain root privileges

  This issue was addressed with improved checks.

  CVE-2026-20626

• Kernel

  An attacker in a privileged network position may be able to intercept network traffic

  A logic issue was addressed with improved checks.

  CVE-2026-20671

• libxpc

  An app may be able to break out of its sandbox

  A logic issue was addressed with improved checks.

  CVE-2026-20667

• Messages

  A shortcut may be able to bypass sandbox restrictions

  A race condition was addressed with improved handling of symbolic links.

  CVE-2026-20677

• Notification Center

  An app with root privileges may be able to access private information

  This issue was addressed with improved redaction of sensitive information.

  CVE-2026-20603

• Remote Management

  An app may be able to gain root privileges

  A path handling issue was addressed with improved validation.

  CVE-2026-20614

• Sandbox

  An app may be able to break out of its sandbox

  A permissions issue was addressed with additional restrictions.

  CVE-2026-20628

• Security

  An app may be able to gain root privileges

  A package validation issue was addressed by blocking the vulnerable package.

  CVE-2026-20658

• Setup Assistant

  An app may be able to gain root privileges

  This issue was addressed with improved handling of symlinks.

  CVE-2026-20610

• Spotlight

  A sandboxed app may be able to access sensitive user data

  The issue was addressed with additional restrictions on the observability of app states.

  CVE-2026-20680

• Wi-Fi

  An app may be able to cause unexpected system termination or corrupt kernel memory

  The issue was addressed with improved memory handling.

  CVE-2026-20621

• Admin Framework

  An app may be able to access sensitive user data

  A parsing issue in the handling of directory paths was addressed with improved path validation.

  CVE-2026-20669

• AppleEvents

  An app may be able to access sensitive user data

  An authorization issue was addressed with improved state management.

  CVE-2026-20670

• AppleMobileFileIntegrity

  An app may be able to access sensitive user data

  A parsing issue in the handling of directory paths was addressed with improved path validation.

  CVE-2026-20625

• AppleMobileFileIntegrity

  An app may be able to access sensitive user data

  An injection issue was addressed with improved validation.

  CVE-2026-20624

• Contacts

  An app may be able to access information about a user's contacts

  A privacy issue was addressed with improved private data redaction for log entries.

  CVE-2026-20681

• CoreServices

  An app may be able to access sensitive user data

  An issue existed in the handling of environment variables. This issue was addressed with improved validation.

  CVE-2026-20627

• Focus

  An app may be able to access sensitive user data

  A logging issue was addressed with improved data redaction.

  CVE-2026-20668

• Foundation

  An app may be able to access user-sensitive data

  A privacy issue was addressed with improved handling of temporary files.

  CVE-2026-20629

• Foundation

  An app may be able to access protected user data

  A permissions issue was addressed by removing the vulnerable code.

  CVE-2026-20623

• Game Center

  A user may be able to view sensitive user information

  A logging issue was addressed with improved data redaction.

  CVE-2026-20649

• LaunchServices

  An app may be able to access protected user data

  A permissions issue was addressed with additional restrictions.

  CVE-2026-20630

• LaunchServices

  An app may be able to access sensitive user data

  An information disclosure issue was addressed with improved privacy controls.

  CVE-2026-20672

• Messages

  An app may be able to access sensitive user data

  A privacy issue was addressed with improved handling of temporary files.

  CVE-2026-20651

• MigrationKit

  An app may be able to access user-sensitive data

  This issue was addressed with improved handling of symlinks.

  CVE-2026-20694

• NSOpenPanel

  An app may be able to access sensitive user data

  An authorization issue was addressed with improved state management.

  CVE-2026-20666

• Screen Time

  An app may be able to access protected user data

  A permissions issue was addressed with additional restrictions.

  CVE-2026-28855

• Shortcuts

  An app may be able to access sensitive user data

  A parsing issue in the handling of directory paths was addressed with improved path validation.

  CVE-2026-20653

• Siri

  An attacker with physical access to a locked device may be able to view sensitive user information

  An authorization issue was addressed with improved state management.

  CVE-2026-20662

• Siri

  An app may be able to access sensitive user data

  This issue was addressed with improved data protection.

  CVE-2026-20647

• Spotlight

  An app may be able to access sensitive user data

  A privacy issue was addressed with improved checks.

  CVE-2026-20612

• Spotlight

  An app may be able to access user-sensitive data

  A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions.

  CVE-2026-20699

• System Settings

  An app may be able to access sensitive user data

  A logging issue was addressed with improved data redaction.

  CVE-2026-20619

• System Settings

  An app may be able to access user-sensitive data

  An issue was addressed with improved handling of temporary files.

  CVE-2026-20618

• UIKit

  An app may be able to bypass certain Privacy preferences

  This issue was addressed by removing the vulnerable code.

  CVE-2026-20606

• Weather

  A malicious app may be able to read sensitive location information

  A logging issue was addressed with improved data redaction.

  CVE-2026-20646

• WebKit

  A website may be able to track users through Safari web extensions

  This issue was addressed through improved state management.

  CVE-2026-20676

• AppleKeyStore

  An app may be able to cause unexpected system termination

  A use after free issue was addressed with improved memory management.

  CVE-2026-20637

• configd

  Processing a maliciously crafted string may lead to heap corruption

  An integer overflow was addressed with improved input validation.

  CVE-2026-20639

• CoreAudio

  Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory

  An out-of-bounds access issue was addressed with improved bounds checking.

  CVE-2026-20611

• CoreMedia

  Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents

  The issue was addressed with improved memory handling.

  CVE-2026-20609

• Kernel

  An app may be able to cause unexpected system termination

  The issue was addressed with improved memory handling.

  CVE-2026-20654

• libexpat

  Processing a maliciously crafted file may lead to a denial-of-service

  This is a vulnerability in open source code and Apple Software is among the affected projects. The CVE-ID was assigned by a third party. Learn more about the issue and CVE-ID at cve.org .

  CVE-2025-59375

• Model I/O

  Processing a maliciously crafted USD file may lead to unexpected app termination

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-20616

• Voice Control

  An app may be able to crash a system process

  The issue was addressed with improved memory handling.

  CVE-2026-20605

• WebKit

  A remote attacker may be able to cause a denial-of-service

  The issue was addressed with improved memory handling.

  CVE-2026-20652

• WebKit

  Processing maliciously crafted web content may lead to an unexpected process crash

  This issue was addressed through improved state management.

  CVE-2026-20608

• WebKit

  Processing maliciously crafted web content may lead to an unexpected process crash

  The issue was addressed with improved memory handling.

  CVE-2026-20644 CVE-2026-20636 CVE-2026-20635

• WindowServer

  An app may be able to cause a denial-of-service

  The issue was addressed with improved handling of caches.

  CVE-2026-20602

• CFNetwork

  A remote user may be able to write arbitrary files

  A path handling issue was addressed with improved logic.

  CVE-2026-20660

• Foundation

  An app may be able to monitor keystrokes without user permission

  A permissions issue was addressed with additional restrictions.

  CVE-2026-20601

• ImageIO

  Processing a maliciously crafted image may lead to disclosure of user information

  The issue was addressed with improved bounds checks.

  CVE-2026-20675

• ImageIO

  Processing a maliciously crafted image may result in disclosure of process memory

  The issue was addressed with improved memory handling.

  CVE-2026-20634

• Mail

  Turning off "Load remote content in messages” may not apply to all mail previews

  A logic issue was addressed with improved checks.

  CVE-2026-20673

• Safari

  An app may be able to access a user's Safari history

  A logic issue was addressed with improved validation.

  CVE-2026-20656

• Shortcuts

  An app may be able to capture a user's screen

  A privacy issue was addressed with improved handling of temporary files.

  CVE-2026-20622

• Siri

  A malicious app may be able to access notifications from other iCloud devices

  A privacy issue was addressed by moving sensitive data to a protected location.

  CVE-2026-20648

• StoreKit

  An app may be able to identify what other apps a user has installed

  A privacy issue was addressed with improved checks.

  CVE-2026-20641

macOS Tahoe Security Release History

macOS Tahoe 26.3 in context: the security releases Apple has published for macOS Tahoe, newest first, with the number of fixes each carried.

The Same Fixes Elsewhere

Apple ships most fixes to every platform that shares the code, and to older versions still under support. These releases close at least one of the same CVEs:

Frequently Asked Questions