Executive brief
A validation issue in macOS allows remote users to trigger unexpected application crashes or execute arbitrary code by sending maliciously crafted input. This vulnerability affects multiple recent macOS versions and could enable attackers to compromise system stability and potentially gain unauthorized access to affected Apple computers.
Technical details
The vulnerability is a validation/input sanitization issue (CVE-2026-43692) in macOS that can be triggered by a remote user. The affected component processes untrusted input without proper validation, leading to either unexpected application termination (denial of service) or arbitrary code execution depending on exploitation technique. The issue is addressed through improved input sanitization and bounds checking. Remote attack vector; no authentication required. Patches are available in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Affected products
- Apple macOS Golden Gate before 27
- Apple macOS Sequoia before 15.8
- Apple macOS Tahoe before 26.7
Timeline
- 2026-09-14: disclosed: CVE-2026-43692 published; security patches released
- 2026-09-14: patched: Patches available in macOS Golden Gate 27, Sequoia 15.8, Tahoe 26.7