CVE-2026-20676
Analyzed Analyzed - Analysis Complete
User Tracking via Safari Web Extensions Due to State Management Flaw

Publication date: 2026-02-11

Last updated on: 2026-04-02

Assigner: Apple Inc.

Description
This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
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Meta Information
Published
2026-02-11
Last Modified
2026-04-02
Generated
2026-06-16
AI Q&A
2026-02-12
EPSS Evaluated
2026-06-15
NVD
CVE-2026-20676
EUVD
EUVD-2026-6230
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
apple ipados to 26.3 (exc)
apple iphone_os to 26.3 (exc)
apple macos to 26.3 (exc)
apple visionos to 26.3 (exc)
apple safari to 26.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
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Executive Summary

This vulnerability involves a website's ability to track users through Safari web extensions due to insufficient state management.

The issue was addressed by improving state management and fixed in versions iOS 26.3, iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, and visionOS 26.3.

Impact Analysis

This vulnerability can impact users by allowing websites to track their activities through Safari web extensions, potentially compromising user privacy.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, update affected Apple products to version 26.3 or later. This includes iOS, iPadOS, Safari, macOS Tahoe, and visionOS.

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