CVE-2026-94483: Next Next.js Has Server-Side Request Forgery Vulnerability

HIGH
Advisory Identifier: GHSA-cjq9-62q9-8jv4
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CVSS 6.5
CWE-918
Published
Advisory Summary

CVE-2026-94483 is a HIGH (CVSS 6.5) next.js has server-side request forgery vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Next libraries in the npm ecosystem. The issue involves next.js has server-side request forgery in image optimization. Remediation is available by upgrading affected packages to version 16.3.8.

CVE-2026-94483 at a Glance

CVE Identifier CVE-2026-94483
GHSA Identifier GHSA-cjq9-62q9-8jv4
Severity HIGH
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-2026-94483

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: 16.3.8 
npm install next@16.3.8
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-2026-94483, 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 16.3.8), 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 An attacker-controlled, allow-listed remote URL can lead to server-side request forgery (e.g. to private IPs) during Image Optimization. ## Workaround Audit allow-listed remote URLs in `images.remotePatterns` (see https://nextjs.org/docs/app/getting-started/images#remote-images) for hosts that may not be trusted with their DNS entries. If no `images.remotePatterns` are configured, your app is not affected.

CVE-2026-94483 Affected Next Versions

1 component(s)
Fixed Versions:
16.3.8
Product / Package Ecosystem Affected Versions Fixed Version
next
npm/next
npm
≥ 16.0.0
< 16.3.8
16.3.8

References

GitHub Advisory / Wiki ADVISORY
https://github.com/vercel/next.js/security/advisories/GHSA-cjq9-62q9-8jv4
NVD — CVE-2026-94483 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94483
Security Fix Commit FIX COMMIT
https://github.com/vercel/next.js/commit/e002ad68bd676bb0ed0c87bb22e3590304763e0b
Next Source Repository REPOSITORY
https://github.com/vercel/next.js
Next Release RELEASE
https://github.com/vercel/next.js/releases/tag/v16.3.8

Frequently Asked Questions

What is CVE-2026-94483?
CVE-2026-94483 is a security vulnerability in Next involving Next.js has Server-Side Request Forgery in Image Optimization under CWE-918: Server-Side Request Forgery (SSRF).
Which Next versions are affected?
Affected versions include releases prior to 16.3.8 across affected packages: next.
What version fixes CVE-2026-94483?
Upgrading to 16.3.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is next affected?
Yes, next is affected in releases prior to 16.3.8. Upgrade your dependency to 16.3.8 or later.
What is the CVSS score of CVE-2026-94483?
CVE-2026-94483 has a CVSS v3.1 base score of 6.5 (HIGH) 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-2026-94483?
CVE-2026-94483 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-2026-94483?
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-cjq9-62q9-8jv4",
  "modified" : "2026-10-07T20:30:55Z",
  "published" : "2026-10-07T20:30:55Z",
  "aliases" : [ "CVE-2026-94483" ],
  "summary" : "Next.js has Server-Side Request Forgery in Image Optimization",
  "details" : "## Impact\n\nAn attacker-controlled, allow-listed remote URL can lead to server-side request forgery (e.g. to private IPs) during Image Optimization. \n\n## Workaround\n\nAudit allow-listed remote URLs in `images.remotePatterns` (see https://nextjs.org/docs/app/getting-started/images#remote-images) for hosts that may not be trusted with their DNS entries. If no `images.remotePatterns` are configured, your app is not affected.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "next"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "16.0.0"
      }, {
        "fixed" : "16.3.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/vercel/next.js/security/advisories/GHSA-cjq9-62q9-8jv4"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-94483"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vercel/next.js/commit/e002ad68bd676bb0ed0c87bb22e3590304763e0b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/vercel/next.js"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vercel/next.js/releases/tag/v16.3.8"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-07T20:30:55Z",
    "nvd_published_at" : "2026-10-02T16:16:51Z"
  }
}