CVE-2026-20631: Apple macOS

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be able to elevate privileges.

Affected products

• Apple macOS: from 26.0, before 26.4 (fixed in 26.4)

Published 2026-03-25. Last modified 2026-06-17.