CVE-2026-20699
Received Received - Intake
Code-Signing Downgrade Allows Sensitive Data Access on Intel Macs

Publication date: 2026-03-25

Last updated on: 2026-03-25

Assigner: Apple Inc.

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.
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Meta Information
Published
2026-03-25
Last Modified
2026-03-25
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-15
NVD
CVE-2026-20699
EUVD
EUVD-2026-15074
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
apple macos From 26.0 (inc) to 26.3 (exc)
apple macos From 14.0 (inc) to 14.8.5 (exc)
apple macos From 15.0 (inc) to 15.7.5 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-347 The product does not verify, or incorrectly verifies, the cryptographic signature for data.
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Executive Summary

This vulnerability is a downgrade issue affecting Intel-based Mac computers. It involves a weakness that was addressed by adding additional code-signing restrictions in certain macOS versions. Essentially, an application may exploit this issue to gain access to user-sensitive data.

Impact Analysis

The impact of this vulnerability is that an application could potentially access sensitive data belonging to the user without proper authorization. This could lead to privacy breaches or unauthorized data exposure on affected Intel-based Mac computers.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, update your Intel-based Mac computers to the fixed versions of macOS: macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, or macOS Tahoe 26.3 or 26.4.

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