CVE-2025-57822 — Next.js Improper Middleware Redirect Handling Leads to SSRF
Next.js is a React framework for building full-stack web applications. Prior to versions 14.2.32 and 15.4.7, when next() was used without explicitly passing the request object, …
Published: 2025-08-29 · CVSS: 6.5 · CVSS 3.1
Next.js is a React framework for building full-stack web applications. Prior to versions 14.2.32 and 15.4.7, when next() was used without explicitly passing the request object, it could lead to SSRF in self-hosted applications that incorrectly forwarded user-supplied headers. This vulnerability has been fixed in Next.js versions 14.2.32 and 15.4.7. All users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the next() function.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7