PT-2025-51902 · Apple · Safari+1

Andreas Jaegersberger + 1 · Published 2025-12-12 · Updated 2025-12-21 · CVE-2025-43526

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions macOS versions prior to Tahoe 26.2 Safari versions prior to 26.2

Description A flaw exists due to improved URL validation. Specifically, 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.

Recommendations Update to macOS Tahoe 26.2. Update to Safari 26.2.

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2025-43526

Affected Products

Apple Macos

Safari

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2025-43526 · Security Note
• https://support.apple.com/en-us/125886 · Vendor Advisory
• https://support.apple.com/en-us/125892 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-43526 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-43526 · Note
• https://twitter.com/CVEnew/status/2002835947671490947 · Twitter Post