CVE-2026-64713

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Cross-Site Tracking Disclosure in Safari and iOS

Publication date: 2026-07-27

Last updated on: 2026-07-30

Assigner: Apple Inc.

Description

This issue was addressed with improved checks. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Websites may know if the user has visited a given link.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-30

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-64713

EUVD

EUVD-2026-49528

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 26.0 (inc) to 26.6 (exc)
apple	ipados	to 26.6 (exc)
apple	iphone_os	to 26.6 (exc)
apple	tvos	to 26.6 (exc)
apple	visionos	to 26.6 (exc)
apple	safari	to 26.6 (exc)
apple	watchos	to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-203	The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

Attack-Flow Graph

Executive Summary

This vulnerability allows websites to detect if a user has visited a specific link. It was addressed with improved checks and fixed in multiple Apple software updates including Safari 26.6, iOS 26.6, macOS Tahoe 26.6, and others.

Detection Guidance

This vulnerability involves websites detecting if a user has visited a specific link. Detection would require checking Safari and other Apple browser versions against the fixed versions (Safari 26.6, iOS 26.6, macOS Tahoe 26.6, etc.). No specific commands are provided in the context to detect this issue.

Impact Analysis

This vulnerability could compromise user privacy by revealing browsing history to websites. Attackers might exploit it to track user activity or infer sensitive information based on visited links.

Compliance Impact

The provided CVE data does not specify how this vulnerability impacts compliance with standards like GDPR or HIPAA. The issue involves websites detecting user link visits, which may relate to privacy but lacks direct compliance implications in the given context.

Mitigation Strategies

Update affected Apple products to the fixed versions: Safari 26.6, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6.

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