CVE-2025-43526

9.8 criticalEPSS 0.5%

Critical (9.8) in apple. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
CWE: CWE-601
Published: 2025-12-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apple:macos
apple:safari

References

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

Check your stack JSON