Disclosure summary
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)
Source-reported weakness categories
CWE-288
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-12445
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| chrome | * {"versionEndExcluding":"142.0.7444.59"} |
Microsoft Security Updates (CVRF) · 2025-Oct
Open original source · Updated Oct 31, 2025
Chromium: CVE-2025-12445 Policy bypass in Extensions
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | Microsoft Edge (Chromium-based) | (MSRC status code 3) |
Vendor remediation references
- Release Notes · build 142.0.3595.53 · product IDs 11655
- Vendor guidance · product IDs 11655
Original records & references
- NIST NVD record
- CVE Program record
- chromereleases.googleblog.com — Release Notes, Vendor Advisory
- issues.chromium.org — Issue Tracking, Permissions Required
PUBLISHED 2025-11-10T15:15:39-05:00
MODIFIED 2026-10-07T17:10:00-04:00
INGESTED 2026-10-08T12:35:23-04:00