GHSA-4342-x723-ch2f
Next.js Improper Middleware Redirect Handling Leads to SSRF
At a glance
- Published
- Updated
- CVE
- CVE-2025-57822
- CVSS_V3
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Description
A vulnerability in **Next.js Middleware** has been fixed in **v14.2.32** and **v15.4.7**. The issue occurred when request headers were directly passed into `NextResponse.next()`. In self-hosted applications, this could allow Server-Side Request Forgery (SSRF) if certain sensitive headers from the incoming request were reflected back into the response. All users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the `next()` function. More details at [Vercel Changelog](https://vercel.com/changelog/cve-2025-57822)
Affected packages
| Package | Versions |
|---|---|
| npm · next | introduced 0.9.9, fixed 14.2.32 |
| npm · next | introduced 15.0.0-canary.0, fixed 15.4.7 |
References
- https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f WEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-57822 ADVISORY
- https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8 WEB
- https://github.com/vercel/next.js PACKAGE
- https://vercel.com/changelog/cve-2025-57822 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |