CVE-2025-57822: Next Next.js Improper Middleware Redirect Handling Vulnerability

MODERATE
Advisory Identifier: GHSA-4342-x723-ch2f
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CVSS 6.5
CWE-918
Published
Advisory Summary

CVE-2025-57822 is a MODERATE (CVSS 6.5) next.js improper middleware redirect handling vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Next libraries in the npm ecosystem. The issue involves next.js improper middleware redirect handling leads to ssrf. Remediation is available by upgrading affected packages to version 14.2.32, 15.4.7.

CVE-2025-57822 at a Glance

CVE Identifier CVE-2025-57822
GHSA Identifier GHSA-4342-x723-ch2f
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Next
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-57822

To remediate this vulnerability, upgrade all affected Next dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

next fixed: 14.2.32 
npm install next@14.2.32
next fixed: 15.4.7 
npm install next@15.4.7
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls next

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-57822, inspect your project dependencies using npm:

npm ls next

Analyze the terminal output to locate any version of Next in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 14.2.32), your application is affected.

Note: The npm ls next command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Next, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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)

CVE-2025-57822 Affected Next Versions

2 component(s)
Fixed Versions:
14.2.3215.4.7
Product / Package Ecosystem Affected Versions Fixed Version
next
npm/next
npm
≥ 0.9.9
< 14.2.32
14.2.32
next
npm/next
npm
≥ 15.0.0-canary.0
< 15.4.7
15.4.7

References

GitHub Advisory / Wiki ADVISORY
https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f
vercel.com/changelog/cve-2025-... WEB
https://vercel.com/changelog/cve-2025-57822
NVD — CVE-2025-57822 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-57822
Security Fix Commit FIX COMMIT
https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8
Next Source Repository REPOSITORY
https://github.com/vercel/next.js

Frequently Asked Questions

What is CVE-2025-57822?
CVE-2025-57822 is a security vulnerability in Next involving Next.js Improper Middleware Redirect Handling Leads to SSRF under CWE-918: Server-Side Request Forgery (SSRF).
Which Next versions are affected?
Affected versions include releases prior to 14.2.32, 15.4.7 across affected packages: next.
What version fixes CVE-2025-57822?
Upgrading to 14.2.32, 15.4.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is next affected?
Yes, next is affected in releases prior to 14.2.32, 15.4.7. Upgrade your dependency to 14.2.32, 15.4.7 or later.
What is the CVSS score of CVE-2025-57822?
CVE-2025-57822 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with CVE-2025-57822?
CVE-2025-57822 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check npm dependencies for CVE-2025-57822?
Run the dependency tree command: 'npm ls next'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4342-x723-ch2f",
  "modified" : "2025-09-11T15:41:02Z",
  "published" : "2025-08-29T21:33:09Z",
  "aliases" : [ "CVE-2025-57822" ],
  "summary" : "Next.js Improper Middleware Redirect Handling Leads to SSRF",
  "details" : "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.\n\nAll users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the `next()` function.\n\nMore details at [Vercel Changelog](https://vercel.com/changelog/cve-2025-57822)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "next"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.9.9"
      }, {
        "fixed" : "14.2.32"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "next"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "15.0.0-canary.0"
      }, {
        "fixed" : "15.4.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-57822"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/vercel/next.js"
  }, {
    "type" : "WEB",
    "url" : "https://vercel.com/changelog/cve-2025-57822"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-08-29T21:33:09Z",
    "nvd_published_at" : "2025-08-29T22:15:32Z"
  }
}