CVE-2026-84555: Apple macOS

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

An authorization issue was addressed with improved access control. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8. An app may be able to access sensitive user data.

Affected products

• Apple macOS: from 15.0, before 15.8 (fixed in 15.8); from 26.0, before 27.0 (fixed in 27.0)

Published 2026-09-14. Last modified 2026-09-16.