CVE-2025-29927

Description

Next.js is a React framework for building full-stack web applications. Starting in version 1.11.4 and prior to versions 12.3.5, 13.5.9, 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 12.3.5, 13.5.9, 14.2.25, and 15.2.3.

Reserved 2025-03-12 | Published 2025-03-21 | Updated 2025-04-08 | Assigner GitHub_M

Problem types

CWE-285: Improper Authorization

Product status

>= 11.1.4, < 12.3.5
affected

>= 14.0.0, < 14.2.25
affected

>= 15.0.0, < 15.2.3
affected

>= 13.0.0, < 13.5.9
affected

References

github.com/...ext.js/security/advisories/GHSA-f82v-jwr5-mffw

github.com/...ommit/52a078da3884efe6501613c7834a3d02a91676d2

github.com/...ommit/5fd3ae8f8542677c6294f32d18022731eab6fe48

github.com/vercel/next.js/releases/tag/v12.3.5

github.com/vercel/next.js/releases/tag/v13.5.9

cve.org (CVE-2025-29927)

nvd.nist.gov (CVE-2025-29927)

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