CVE-2026-43725

Modified Modified - Updated After Analysis

Sandbox Escape in Safari via Malicious Website

Publication date: 2026-06-29

Last updated on: 2026-07-27

Assigner: Apple Inc.

Description

The issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. A malicious website may be able to process restricted web content outside the sandbox.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-29

Last Modified

2026-07-27

Generated

2026-08-09

AI Q&A

2026-06-29

EPSS Evaluated

2026-08-08

NVD

CVE-2026-43725

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	From 26.0 (inc) to 26.5.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability involves a flaw in input validation that allowed a malicious website to process restricted web content outside of the browser's sandbox environment.

The issue was addressed by improving input validation in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.

Impact Analysis

A malicious website exploiting this vulnerability could potentially access or process restricted web content outside the intended sandbox, which may lead to unauthorized data access or other security risks.

Mitigation Strategies

To mitigate this vulnerability, update your Apple devices and software to the fixed versions Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 as applicable.

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