This issue was addressed with improved checks. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to code execution.
Published September 8, 2021.
Apple iPhone OS
Apple Safari
Apple Ipados
Apple watchOS
Apple Macos
Apple Tvos