CVE-2026-43700
Received Received - Intake

Cross-Origin Information Disclosure in Safari and iOS

Publication date: 2026-06-29

Last updated on: 2026-06-29

Assigner: Apple Inc.

Description
A cross-origin issue was addressed with improved tracking of security origins. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may disclose sensitive user information.

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Meta Information

Published
2026-06-29
Last Modified
2026-06-29
Generated
2026-06-30
AI Q&A
2026-06-29
EPSS Evaluated
N/A
NVD
CVE-2026-43700

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
apple safari 26.5.2
apple ios 26.5.2
apple ipados 26.5.2
apple macos_tahoe 26.5.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-346 The product does not properly verify that the source of data or communication is valid.

Attack-Flow Graph

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Executive Summary

This vulnerability is a cross-origin issue related to how security origins are tracked in certain Apple operating systems and browsers. It was addressed by improving the tracking of security origins to prevent unauthorized access.

Specifically, processing maliciously crafted web content could lead to the disclosure of sensitive user information.

Impact Analysis

If exploited, this vulnerability could allow malicious web content to disclose sensitive user information by bypassing security origin restrictions.

Mitigation Strategies

To mitigate this vulnerability, update affected Apple products to the fixed versions: Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2.

Compliance Impact

This vulnerability involves a cross-origin issue that may lead to the disclosure of sensitive user information when processing maliciously crafted web content.

Such unauthorized disclosure of sensitive information could potentially impact compliance with data protection regulations and standards like GDPR and HIPAA, which require safeguarding personal and sensitive data against unauthorized access or leaks.

However, specific details on how this vulnerability directly affects compliance with these standards are not provided.

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