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Intel-based Macs: Apps Can Access Sensitive Data Due to Code-Signing Error
CVE-2026-20699
Summary
Intel-based Mac users need to update their operating system to macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, or macOS Tahoe 26.3/26.4 to prevent potential security risks. If not updated, an app may be able to access sensitive user data. Update your Mac as soon as possible to fix this issue.
Original title
A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, ma...
Original description
A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, macOS Tahoe 26.4. An app may be able to access user-sensitive data.
Published: 25 Mar 2026 · Updated: 25 Mar 2026 · First seen: 25 Mar 2026