CVE-2026-43725: A malicious website may be able to process restricted web content outside the sandbox in Apple Safari
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. A malicious website may be able to process restricted web content outside the sandbox.
AI Analysis
Technical Summary
This vulnerability allows a malicious website to bypass Safari's sandbox restrictions, potentially enabling it to process restricted web content outside the intended secure environment. Apple fixed the issue by improving input validation in Safari and related Apple operating systems. The fix is included starting with version 26.5.2 of Safari and corresponding OS versions.
Potential Impact
A malicious website could exploit this vulnerability to process restricted content outside the sandbox, which may lead to unauthorized access or actions beyond the browser's security boundaries. No known exploits in the wild have been reported.
Mitigation Recommendations
Users and administrators should update Safari and the associated Apple operating systems to version 26.5.2 or later, where the vulnerability has been fixed. Since the issue is addressed by an official fix, applying this update fully mitigates the risk.
CVE-2026-43725: A malicious website may be able to process restricted web content outside the sandbox in Apple Safari
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. A malicious website may be able to process restricted web content outside the sandbox.
CVSS v3.1
Score 7.1high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability allows a malicious website to bypass Safari's sandbox restrictions, potentially enabling it to process restricted web content outside the intended secure environment. Apple fixed the issue by improving input validation in Safari and related Apple operating systems. The fix is included starting with version 26.5.2 of Safari and corresponding OS versions.
Potential Impact
A malicious website could exploit this vulnerability to process restricted content outside the sandbox, which may lead to unauthorized access or actions beyond the browser's security boundaries. No known exploits in the wild have been reported.
Mitigation Recommendations
Users and administrators should update Safari and the associated Apple operating systems to version 26.5.2 or later, where the vulnerability has been fixed. Since the issue is addressed by an official fix, applying this update fully mitigates the risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.645Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d427e9c7971972d13f
Added to database: 06/29/2026, 20:21:40 UTC
Last enriched: 06/29/2026, 20:37:25 UTC
Last updated: 06/29/2026, 22:57:59 UTC
Views: 6
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