CVE-2025-12445: Low Policy bypass in Extensions.
Chromium: CVE-2025-12445 Policy bypass in Extensions
Other sources
Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Low)
— MITRE
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2025-12428
- CVE-2025-12429
- CVE-2025-12430
- CVE-2025-12431
- CVE-2025-12432
- CVE-2025-12433
- CVE-2025-12036
- CVE-2025-12434
- CVE-2025-12435
- CVE-2025-12436
- CVE-2025-12437
- CVE-2025-12438
- CVE-2025-12439
- CVE-2025-12440
- CVE-2025-12441
- CVE-2025-12443
- CVE-2025-12444
- CVE-2025-12446
- CVE-2025-12447
- CVE-2025-13226
- CVE-2025-13227
- CVE-2025-13228
- CVE-2025-13229
- CVE-2025-13230
Frequently Asked Questions
What is the severity of CVE-2025-12445?
CVE-2025-12445 has a high severity rating due to its potential to bypass critical security policies in extensions.
How do I fix CVE-2025-12445?
To mitigate CVE-2025-12445, update Google Chrome to version 142.0.7444.59 or Microsoft Edge (Chromium-based) to the latest version available.
What software is affected by CVE-2025-12445?
CVE-2025-12445 affects Google Chrome versions prior to 142.0.7444.59 and Microsoft Edge (Chromium-based) versions prior to their latest updates.
What type of vulnerability is CVE-2025-12445?
CVE-2025-12445 is a policy bypass vulnerability that impacts the security model of browser extensions.
Has CVE-2025-12445 been addressed in browser updates?
Yes, both Google Chrome and Microsoft Edge have released updates to address CVE-2025-12445.