Apple on Tuesday released its first round of Background Security Improvements to address a security flaw in WebKit that affects iOS, iPadOS, and macOS.
The vulnerability, tracked as CVE-2026-20643 (CVSS score: N/A), has been described as a cross-origin issue in WebKit’s Navigation API that could be exploited to bypass the same-origin policy when processing maliciously crafted web content.
The
Apple Fixes WebKit Vulnerability Enabling Same-Origin Policy Bypass on iOS and macOS
