An out-of-bounds read was addressed with improved input validation. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing web content may disclose sensitive information.
https://support.apple.com/en-us/HT213764
https://support.apple.com/en-us/HT213762
https://support.apple.com/en-us/HT213761