A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
https://support.apple.com/en-us/126799
https://support.apple.com/en-us/126798
https://support.apple.com/en-us/126797
https://support.apple.com/en-us/126796
https://support.apple.com/en-us/126795
https://support.apple.com/en-us/126794