CVE-2025-29927
critical · 9.1A public exploit / detection template exists
Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| vercel | next.js | >= 11.1.4, < 12.3.5 |
| vercel | next.js | >= 13.0.0, < 13.5.9 |
| vercel | next.js | >= 14.0.0, < 14.2.25 |
| vercel | next.js | >= 15.0.0, < 15.2.3 |
Check a specific version with /api/v1/cve/match.
References
- https://github.com/vercel/next.js/commit/52a078da3884efe6501613c7834a3d02a91676d2
- https://github.com/vercel/next.js/commit/5fd3ae8f8542677c6294f32d18022731eab6fe48
- https://github.com/vercel/next.js/releases/tag/v12.3.5
- https://github.com/vercel/next.js/releases/tag/v13.5.9
- https://github.com/vercel/next.js/security/advisories/GHSA-f82v-jwr5-mffw
- http://www.openwall.com/lists/oss-security/2025/03/23/3
- http://www.openwall.com/lists/oss-security/2025/03/23/4
- https://security.netapp.com/advisory/ntap-20250328-0002/
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2025-29927