CVE-2025-43526

Dec. 18, 2025, 8:36 p.m.

9.8
Critical

Description

This issue was addressed with improved URL validation. This issue is fixed in macOS Tahoe 26.2, Safari 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.

Product(s) Impacted

Vendor Product Versions
Apple
  • Safari
  • Macos
  • *
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-601
URL Redirection to Untrusted Site ('Open Redirect')
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a apple safari / / / / / / / /
o apple macos / / / / / / / /

References

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

Tags

product-security@apple.com
2025-12-17
CVE-2025-43526

CVSS Score

9.8 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH

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

    View Vector String

Timeline

Published: Dec. 17, 2025, 9:16 p.m.
Last Modified: Dec. 18, 2025, 8:36 p.m.

Status : Analyzed

CVE has had analysis completed and all data associations made.

More info

Source

product-security@apple.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.