💣Exploit CVE-2025-29927 - Next.js Authorization Bypass in Middleware

[Mental_Outlaw]

CVE ID : CVE-2025-29927
Published : March 21, 2025, 3:15 p.m. | 24 minutes ago
Description : 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: 9.1 | CRITICAL
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