CVE-2024-34351: Next Next.js Server-Side Request Forgery Vulnerability

HIGH
Advisory Identifier: GHSA-fr5h-rqp8-mj6g
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CVSS 7.5
CWE-918
Published
Advisory Summary

CVE-2024-34351 is a HIGH (CVSS 7.5) next.js server-side request forgery vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Next libraries in the npm ecosystem. The issue involves next.js server-side request forgery in server actions. Remediation is available by upgrading affected packages to version 14.1.1.

CVE-2024-34351 at a Glance

CVE Identifier CVE-2024-34351
GHSA Identifier GHSA-fr5h-rqp8-mj6g
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Next
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

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

How to Fix CVE-2024-34351

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: 14.1.1 
npm install next@14.1.1
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-2024-34351, 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 14.1.1), 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

### Impact A Server-Side Request Forgery (SSRF) vulnerability was identified in Next.js Server Actions by security researchers at Assetnote. If the `Host` header is modified, and the below conditions are also met, an attacker may be able to make requests that appear to be originating from the Next.js application server itself. #### Prerequisites * Next.js (`<14.1.1`) is running in a self-hosted* manner. * The Next.js application makes use of Server Actions. * The Server Action performs a redirect to a relative path which starts with a `/`. \* Many hosting providers (including Vercel) route requests based on the Host header, so we do not believe that this vulnerability affects any Next.js applications where routing is done in this manner. ### Patches This vulnerability was patched in [#62561](https://github.com/vercel/next.js/pull/62561) and fixed in Next.js `14.1.1`. ### Workarounds There are no official workarounds for this vulnerability. We recommend upgrading to Next.js `14.1.1`. ### Credit Vercel and the Next.js team thank Assetnote for responsibly disclosing this issue to us, and for working with us to verify the fix. Thanks to: Adam Kues - Assetnote Shubham Shah - Assetnote

CVE-2024-34351 Affected Next Versions

1 component(s)
Fixed Versions:
14.1.1
Product / Package Ecosystem Affected Versions Fixed Version
next
npm/next
npm
≥ 13.4.0
< 14.1.1
14.1.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/vercel/next.js/security/advisories/GHSA-fr5h-rqp8-mj6g
NVD — CVE-2024-34351 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-34351
Next Source Repository REPOSITORY
https://github.com/vercel/next.js/pull/62561
Security Fix Commit FIX COMMIT
https://github.com/vercel/next.js/commit/8f7a6ca7d21a97bc9f7a1bbe10427b5ad74b9085
Next Source Repository REPOSITORY
https://github.com/vercel/next.js

Frequently Asked Questions

What is CVE-2024-34351?
CVE-2024-34351 is a security vulnerability in Next involving Next.js Server-Side Request Forgery in Server Actions under CWE-918: Server-Side Request Forgery (SSRF).
Which Next versions are affected?
Affected versions include releases prior to 14.1.1 across affected packages: next.
What version fixes CVE-2024-34351?
Upgrading to 14.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is next affected?
Yes, next is affected in releases prior to 14.1.1. Upgrade your dependency to 14.1.1 or later.
What is the CVSS score of CVE-2024-34351?
CVE-2024-34351 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2024-34351?
CVE-2024-34351 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-2024-34351?
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-fr5h-rqp8-mj6g",
  "modified" : "2025-09-10T21:12:31Z",
  "published" : "2024-05-09T21:18:57Z",
  "aliases" : [ "CVE-2024-34351" ],
  "summary" : "Next.js Server-Side Request Forgery in Server Actions",
  "details" : "### Impact\nA Server-Side Request Forgery (SSRF) vulnerability was identified in Next.js Server Actions by security researchers at Assetnote. If the `Host` header is modified, and the below conditions are also met, an attacker may be able to make requests that appear to be originating from the Next.js application server itself.\n\n#### Prerequisites\n* Next.js (`<14.1.1`) is running in a self-hosted* manner.\n* The Next.js application makes use of Server Actions.\n* The Server Action performs a redirect to a relative path which starts with a `/`.\n\n\\* Many hosting providers (including Vercel) route requests based on the Host header, so we do not believe that this vulnerability affects any Next.js applications where routing is done in this manner.\n\n### Patches\nThis vulnerability was patched in [#62561](https://github.com/vercel/next.js/pull/62561) and fixed in Next.js `14.1.1`.\n \n### Workarounds\nThere are no official workarounds for this vulnerability. We recommend upgrading to Next.js `14.1.1`.\n\n### Credit\nVercel and the Next.js team thank Assetnote for responsibly disclosing this issue to us, and for working with us to verify the fix. Thanks to:\n\nAdam Kues - Assetnote\nShubham Shah - Assetnote",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "next"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.4.0"
      }, {
        "fixed" : "14.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/vercel/next.js/security/advisories/GHSA-fr5h-rqp8-mj6g"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-34351"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vercel/next.js/pull/62561"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vercel/next.js/commit/8f7a6ca7d21a97bc9f7a1bbe10427b5ad74b9085"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/vercel/next.js"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-09T21:18:57Z",
    "nvd_published_at" : "2024-05-14T15:38:42Z"
  }
}