The issue was addressed with improved input validation. This issue is fixed in macOS Tahoe 26.2, macOS Sequoia 15.7.3, macOS Sonoma 14.8.3. An app may be able to cause a denial-of-service.
A mail header parsing issue was addressed with improved checks. This issue is fixed in watchOS 26.1, iOS 18.7.2 and iPadOS 18.7.2, macOS Tahoe 26.1, visionOS 26.1, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, iOS 26.1 and iPadOS 26.1. An attacker may be able to cause a persistent denial-of-service.
An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Tahoe 26.1. An app may be able to break out of its sandbox.
A logic error was addressed with improved error handling. This issue is fixed in macOS Tahoe 26.1. iCloud Private Relay may not activate when more than one user is logged in at the same time.
This issue was addressed with improved data protection. This issue is fixed in macOS Tahoe 26.2, macOS Sequoia 15.7.3, macOS Sonoma 14.8.3. An app may be able to access sensitive user data.
A memory corruption issue was addressed with improved lock state checking. This issue is fixed in watchOS 26.1, iOS 18.7.2 and iPadOS 18.7.2, macOS Tahoe 26.1, visionOS 26.1, tvOS 26.1, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, iOS 26.1 and iPadOS 26.1. A malicious application may cause unexpected changes in memory shared between processes.
The issue was addressed with improved handling of caches. This issue is fixed in macOS Sequoia 15.7.2, macOS Tahoe 26.2, macOS Sonoma 14.8.2. An attacker with physical access may be able to view deleted notes.
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Tahoe 26.2, macOS Sequoia 15.7.3, macOS Sonoma 14.8.3. An app may be able to access protected user data.