CVE-2026-20679: Apple macOS

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

The issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Processing a maliciously crafted file may lead to unexpected app termination.

Affected products

• Apple macOS: from 14.0, before 14.8.5 (fixed in 14.8.5); from 15.0, before 15.7.5 (fixed in 15.7.5); from 26.0, before 26.4 (fixed in 26.4)

Published 2026-08-21. Last modified 2026-08-24.