An information disclosure issue was addressed with improved state management. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 26.6.1. A website may be able to determine a user's IP address with Private Relay turned on.
https://support.apple.com/en-us/148353
https://support.apple.com/en-us/148287