DNS Query Leakage with Private Relay Enabled in Safari/WebKit
CVE-2025-43376 is an Apple vulnerability affecting Safari/WebKit and related Apple platforms. According to the provided content, the issue is a logic flaw addressed through improved state management. When Private Relay is enabled, a remote attacker may still be able to observe leaked DNS queries, indicating that DNS resolution state was not consistently handled in a way that preserved Private Relay’s intended privacy guarantees. Apple states the issue is fixed in Safari 26, tvOS 26, watchOS 26, iOS 26 and iPadOS 26, and visionOS 26.
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Impact
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Mitigation
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Remediation
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Exploits
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No public exploit code observed for this vulnerability.
Affected products & vendors
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Recent activity
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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.
The version that knows your environment.
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.