CVE-2025-43526

This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac with Lockdown Mode enabled, web content opened via a file URL may be able to use Web APIs that should be restricted.

Score

CVSS 3.1 9.8 Critical

Status

Modified - product-security@apple.com

Published

2025-12-17

Last modified

2026-04-02

Weaknesses

CWE-601

Affected products

• Macos (Apple)
• Safari (Apple)

References

• https://support.apple.com/en-us/125886
• https://support.apple.com/en-us/125892