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.
References (2)
Core 2
Core References
Release Notes, Vendor Advisory
https://support.apple.com/en-us/125886
Release Notes, Vendor Advisory
https://support.apple.com/en-us/125892
Scores
CVSS v3
9.8
EPSS
0.0051
EPSS Percentile
39.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-601
Status
published
Products (4)
apple/macos
< 26.2
Apple/macOS
< 26.2
apple/safari
< 26.2
Apple/Safari
< 26.2
Published
Dec 17, 2025
Tracked Since
Feb 18, 2026