Detections
Analytics
CVE-2026-20643
medium
Description
A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS, iPadOS, and macOS, Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may bypass Same Origin Policy.
References
https://www.helpnetsecurity.com/2026/03/18/apple-background-security-improvements-updates/
https://thehackernews.com/2026/03/apple-fixes-webkit-vulnerability.html
https://github.com/Fliv/CVE-2026-20643
https://support.apple.com/en-us/126800
https://support.apple.com/en-us/126799
https://support.apple.com/en-us/126794
https://support.apple.com/en-us/126793
https://support.apple.com/en-us/126792
https://support.apple.com/en-us/126604