Safari Sandbox Escape in iOS and macOS

Publication date: 2026-06-29

Last updated on: 2026-06-30

Assigner: Apple Inc.

Description

The issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. A malicious website may be able to process restricted web content outside the sandbox.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-29

Last Modified

2026-06-30

Generated

2026-07-20

AI Q&A

2026-06-29

EPSS Evaluated

2026-07-18

NVD

CVE-2026-43701

Affected Vendors & Products

Vendor	Product	Version / Range
apple	safari	to 26.5.2 (exc)
apple	ipados	to 26.5.2 (exc)
apple	iphone_os	to 26.5.2 (exc)
apple	macos	to 26.5.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability involves a security issue where a malicious website may be able to process restricted web content outside the normal sandbox environment. The sandbox is a security mechanism that isolates web content to prevent unauthorized access or actions. The issue was addressed by implementing improved checks to prevent this unauthorized processing.

Impact Analysis

If exploited, this vulnerability could allow a malicious website to access or process web content that should be restricted, potentially leading to unauthorized data access or execution of harmful actions outside the intended sandbox protections.

Mitigation Strategies

To mitigate this vulnerability, update affected Apple software to version 26.5.2 or later. This includes Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.

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