A validation issue was addressed with improved logic. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.
https://isc.sans.edu/diary/rss/32976
https://support.apple.com/en-us/127120
https://support.apple.com/en-us/127119
https://support.apple.com/en-us/127118
https://support.apple.com/en-us/127115