CVE-2026-43790: Out-of-bounds Write

The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory...

PT-2026-91705

Name of the Vulnerable Software and Affected Versions macOS versions prior to Golden Gate 27 Description A logic issue involving state management allows an application to bypass Gatekeeper checks. Gatekeeper is a security feature that ensures only trusted software runs on the system...

PT-2026-91644

Found that 3 of my bug submissions had been rolled up into CVE-2026-84589. I’ll aim to get a blog released when they’ve formally been resolved by Apple ProdSec. https://t.co/6wjR6Li2UK...

CVE-2026-84585: Improper Access Control

A permissions issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27. An app may be able to access local network devices without user consent...

CVE-2026-20683: Improper Authentication

An authentication issue was addressed with improved state management. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An app may be able to use the Sign In With Apple authentication flow to access the user's Apple Account...

CVE-2026-84517: Integer Overflow or Wraparound

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination...

CVE-2026-65378: Incorrect Authorization

An authorization issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data...

CVE-2026-86909: Protection Mechanism Failure

A logic issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27. An app may be able to bypass Gatekeeper checks...

CVE-2026-84553: Uncontrolled Resource Consumption

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A remote attacker may be able to cause a denial-of-service...

About the security content of macOS Golden Gate 27

About the security content of macOS Golden Gate 27 This document describes the security content of macOS Golden Gate 27. About Apple security updates For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or...

CVE-2026-43787: Protection Mechanism Failure

A logic issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in a privileged network position may be able to leak sensitive user information...

CVE-2026-86889: Improper Certificate Validation

A certificate validation issue was addressed with improved certificate validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in a privileged network position may be able to intercept network traffic...

CVE-2026-84575: Out-of-bounds Write

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to unexpected app termination...

CVE-2026-84584: Improper Link Resolution Before File Access

This issue was addressed with improved handling of symlinks. This issue is fixed in macOS Golden Gate 27. An app may be able to break out of its sandbox...

CVE-2026-64752: Out-of-bounds Write

A memory corruption issue was addressed by removing the vulnerable code. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. Processing a maliciously crafted image may lead to arbitrary code execution...

PT-2026-91641

Name of the Vulnerable Software and Affected Versions macOS versions prior to Golden Gate 27 watchOS versions prior to 27 Description An information disclosure issue exists where a malicious application may be able to leak sensitive user information. This was caused by improper state management,...

CVE-2026-84533: Missing Support for Integrity Check

A cryptographic issue was addressed with improved integrity checks. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, watchOS 27. An attacker in a privileged network position may be able to modify network traffic...

CVE-2026-84568: Improper Limitation of a Pathname to a Restricted Directory

A path traversal issue was addressed with improved path validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker with control of a network directory server may be able to execute arbitrary code with root privileges...

CVE-2026-84570: Protection Mechanism Failure

A logic issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to bypass Gatekeeper checks...

CVE-2026-65381: Missing Authorization

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A malicious app may be able to break out of its sandbox...