CVE-2025-43526
Apple Safari Lockdown Mode URL Validation Weakness
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.
INFO
Published Date :
Dec. 17, 2025, 9:16 p.m.
Last Modified :
Dec. 17, 2025, 9:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-43526
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Enable Lockdown Mode on macOS.
- Update macOS to version 26.2.
- Update Safari to version 26.2.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-43526.
| URL | Resource |
|---|---|
| https://support.apple.com/en-us/125886 | |
| https://support.apple.com/en-us/125892 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-43526 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-43526
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-43526 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-43526 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Dec. 17, 2025
Action Type Old Value New Value Added 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. Added Reference https://support.apple.com/en-us/125886 Added Reference https://support.apple.com/en-us/125892