Apple security advisory (AV26-839)
Brief
Serial Number: AV26-839
Date: August 21, 2026
As of August 18, 2026, Apple is affected by vulnerabilities in the following products:
- Safari
- Prior to 26.6.1
- iOS and iPadOS
- Prior to 18.7.10
- Prior to 26.6.1
- MacOS Tahoe
- Prior to 26.6.2
The Cyber Centre encourages users and administrators to review the provided web link and apply any necessary updates as they become available.
- Apple security releases - Apple Support
Apple security advisory (AV26-839) - Canadian Centre for Cyber Security