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CVE-2025-29927
Good to know:
Date: March 21, 2025
Next.js is a React framework for building full-stack web applications. Prior to 14.2.25 and 15.2.3, it is possible to bypass authorization checks within a Next.js application, if the authorization check occurs in middleware. If patching to a safe version is infeasible, it is recommend that you prevent external user requests which contain the x-middleware-subrequest header from reaching your Next.js application. This vulnerability is fixed in 14.2.25 and 15.2.3.
Severity Score
Related Resources (14)
Severity Score
Top Fix
Upgrade Version
Upgrade to version next - 13.5.9;next - 14.2.25;next - 15.2.3;next - 12.3.5;next - 14.2.25;next - 15.2.3;https://github.com/vercel/next.js.git - v13.5.9
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | HIGH |
| Availability (A): | NONE |