What’s Vulnerable › Vulnerabilities
CVE-2025-43526
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-12-17 · updated 2026-06-17
- Weakness: CWE-601
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.
Affected products
- Apple macOS: before 26.2 — fixed in 26.2
- Apple Safari: before 26.2 — fixed in 26.2
How to fix
Upgrade to a fixed version: Apple macOS 26.2; Apple Safari 26.2. Check the vendor advisory for mitigations.
References
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