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WEBKIT FLAW LEAKS IP AND DNS DATA THROUGH PROXIES

INDUSTRY DESK1 MIN READ
WED, AUG 5, 2026

■ AI-SUMMARIZED FROM 4 SOURCES ▸ TIMELINE

A vulnerability in WebKit allows IP addresses and DNS queries to bypass proxy browsers and Apple's iCloud Private Relay, undermining privacy protections for users relying on these services.

Security researchers discovered that WebKit, the engine powering Safari and other browsers, fails to route certain traffic through configured proxies and privacy tools. The flaw enables websites to obtain users' actual IP addresses and DNS queries despite active privacy protections. The vulnerability affects proxy browsers and iCloud Private Relay, Apple's service designed to mask user identity and browsing activity. Attackers can exploit the leak through specific WebKit behaviors that bypass established privacy protocols. Affected users include Safari users, iCloud+ subscribers using Private Relay, and anyone relying on proxy-based privacy tools on WebKit-based browsers. The flaw exposes fundamental browsing data that these services specifically aim to protect. Apple has not yet released a patch. Users concerned about IP and DNS leaks should consider alternative browsers or VPN services until an update becomes available. The discovery highlights recurring challenges in browser security architecture.

■ SOURCES

Hacker NewsTechCrunchTechmemeEngadget

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

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