An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, watchOS 26.6. A malicious app may be able to break out of its sandbox.
https://support.apple.com/en-us/128072
https://support.apple.com/en-us/128071
https://support.apple.com/en-us/128068