CVE-2026-28976: Apple macOS

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An information leakage was addressed with additional validation. This issue is fixed in macOS Tahoe 26.5. An app may be able to gain root privileges.

Affected products

• Apple macOS: from 26.0, before 26.5 (fixed in 26.5)

Published 2026-05-11. Last modified 2026-06-17.