Apple has released its first Background Security Improvements update to fix a WebKit vulnerability (CVE-2026-20643) affecting iPhones, iPads, and Macs without requiring a full OS upgrade. This update addresses a cross-origin flaw in the Navigation API through improved input validation and demonstrates Apple’s new ability to deliver small, out-of-band security patches in the background to enhance device security between major software releases.
Apple Pushes First Background Security Improvements Update to Fix WebKit Flaw
