CVE-2025-43526

CRITICAL | Platform: macOS | Changelog

CVE Details

Description

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.

CVSS 3.1 Score

Metric	Value
Base Score	9.8 (CRITICAL)
Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Weakness

CWE-601

References

Apple Security Advisory
NVD Entry
https://support.apple.com/en-us/125892 (Release Notes, Vendor Advisory)