vulnerability
Apple iCloud Private Relay Can Expose Real IPs Through WebKit Proxy Bypasses
High
Summary
Researchers have discovered a vulnerability in Apple's iCloud Private Relay tool that allows users' real IP addresses to be exposed, even when the tool is active. The issue stems from three WebKit features – DNS prefetching, WebAuthn Related Origin Requests, and WebTransport – and affects Safari and other WebKit-based browsers. This bypasses the intended privacy protections of Private Relay and could expose user activity to websites.
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