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Server-Side Request Forgery (SSRF) in next

CVE-2025-57822

  • next
High
8.2/10

Summary

Next.js is a React framework for building full-stack web applications. In versions through 14.2.31, 14.3.0-canary.0 through 15.4.2-canary.42 and 15.4.3 through 15.4.6, when "next()" was used without explicitly passing the request object, it could lead to Server-Side Request Forgery (SSRF) in self-hosted applications that incorrectly forwarded user-supplied headers. All users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the "next()" function.

  • LOW
  • NETWORK
  • LOW
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-918 - Server-Side Request Forgery (SSRF)

Server-side request forgery (SSRF) is a weakness that allows an attacker to send an arbitrary request, making it appear that the request was sent by the server. This request may bypass a firewall that would normally prevent direct access to the URL. The impact of this vulnerability can vary from unauthorized access to files and sensitive information to remote code execution.

References

Advisory Timeline

  • Published