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CVE-2025-43376 is a logic flaw in Apple’s Private Relay handling that can leave DNS queries exposed despite Private Relay being enabled. The issue resulted from incorrect state management and affected Safari DNS lookups, allowing query metadata to be observable outside the intended encrypted Private Relay path. Apple corrected the issue through improved state management in Safari 26; iOS and iPadOS 18.7.7 and 26; macOS Tahoe 26; tvOS 26; visionOS 26; and watchOS 26.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A privacy vulnerability in Apple iCloud Private Relay that allowed Safari DNS queries to be visible to a local-network observer, undermining Private Relay's promised DNS-query protection and potentially revealing users' browsing destinations.
A logic issue that may allow a remote attacker to view leaked DNS queries even with Private Relay enabled.
A Private Relay logic/state issue that could leak DNS queries to a remote attacker even when Private Relay is enabled.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.