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Mallory
High

Private Relay DNS Query Leak in Apple Platforms

IdentifiersCVE-2025-43419CWE-362

CVE-2025-43419 is an Apple vulnerability affecting Safari 26, tvOS 26, watchOS 26, iOS 26, iPadOS 26, and visionOS 26 prior to the fix. According to the provided Apple advisory, the issue could allow a remote attacker to view leaked DNS queries while Private Relay is enabled. Apple states the issue was addressed with improved state management. Although other provided content associates the same CVE in WebKitGTK/WPE WebKit with memory corruption from maliciously crafted web content, the Apple advisory gives specific product-impact details for Apple platforms indicating a privacy leak involving DNS query handling under Private Relay rather than a memory-safety condition. Based on the supplied material, the vulnerable condition is best characterized as a state-management flaw that can expose DNS query information despite the expectation of Private Relay protection.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows a remote attacker to observe DNS queries that should have remained protected when Private Relay is turned on. The primary impact is loss of privacy and potential exposure of browsing-related metadata, including domains a user is attempting to resolve. This could weaken the privacy guarantees of Private Relay and enable network-level or remote correlation of user activity.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce reliance on Private Relay as a sole privacy control for sensitive activity until updates are applied. Limit exposure by using fully updated devices and browsers, minimizing sensitive browsing on affected systems, and monitoring for vendor guidance. No specific workaround beyond installing the fix is provided in the supplied content.

Remediation

Patch, then assume compromise.

Apply the vendor fixes in Safari 26, tvOS 26, watchOS 26, iOS 26, iPadOS 26, and visionOS 26, as Apple states the issue was resolved through improved state management. Systems running affected earlier versions should be upgraded to the latest available patched release for the relevant platform.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AppleIpadosoperating_system
AppleIphone Osoperating_system
AppleSafariapplication
AppleTvosoperating_system
AppleVisionosoperating_system
AppleWatchosoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity3

Community discussion across Reddit, Mastodon, and other social sources.