CVE-2026-34746: Payload Payload Has Authenticated SSRF Vulnerability

HIGH
Advisory Identifier: GHSA-6r7f-q7f5-wpx8
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CVSS 7.7
CWE-918
Published
Advisory Summary

CVE-2026-34746 is a HIGH (CVSS 7.7) payload has authenticated ssrf vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Payload libraries in the npm ecosystem. The issue involves payload has authenticated ssrf via upload functionality. Remediation is available by upgrading affected packages to version 3.79.1.

CVE-2026-34746 at a Glance

CVE Identifier CVE-2026-34746
GHSA Identifier GHSA-6r7f-q7f5-wpx8
Severity HIGH
CVSS v3.1 Base Score 7.7
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Payload
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.7

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

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

How to Fix CVE-2026-34746

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

payload fixed: 3.79.1 
npm install payload@3.79.1
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 payload

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-34746, inspect your project dependencies using npm:

npm ls payload

Analyze the terminal output to locate any version of Payload in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.79.1), your application is affected.

Note: The npm ls payload 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 Payload, 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 authenticated Server-Side Request Forgery (SSRF) vulnerability existed in the upload functionality. Authenticated users with `create` or `update` access to an upload-enabled collection could cause the server to make outbound HTTP requests to arbitrary URLs. Consumers are affected if ALL of these are true: - Payload version **< v3.79.1** - At least one collection with `upload` enabled - An authenticated user has `create` or `update` access to that collection ### Patches This vulnerability has been patched in **v3.79.1**. Users should upgrade to **v3.79.1** or later. ### Workarounds Until consumers can upgrade: - Restrict `create` and `update` access to upload-enabled collections to trusted roles only. - Limit outbound network access from your Payload server where possible.

CVE-2026-34746 Affected Payload Versions

1 component(s)
Fixed Versions:
3.79.1
Product / Package Ecosystem Affected Versions Fixed Version
payload
npm/payload
npm
< 3.79.1
3.79.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/payloadcms/payload/security/advisories/GHSA-6r7f-q7f5-wpx8
NVD — CVE-2026-34746 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34746
Payload Source Repository REPOSITORY
https://github.com/payloadcms/payload
Payload Release RELEASE
https://github.com/payloadcms/payload/releases/tag/v3.79.1

Frequently Asked Questions

What is CVE-2026-34746?
CVE-2026-34746 is a security vulnerability in Payload involving Payload has Authenticated SSRF via Upload Functionality under CWE-918: Server-Side Request Forgery (SSRF).
Which Payload versions are affected?
Affected versions include releases prior to 3.79.1 across affected packages: payload.
What version fixes CVE-2026-34746?
Upgrading to 3.79.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is payload affected?
Yes, payload is affected in releases prior to 3.79.1. Upgrade your dependency to 3.79.1 or later.
What is the CVSS score of CVE-2026-34746?
CVE-2026-34746 has a CVSS v3.1 base score of 7.7 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
What CWE is associated with CVE-2026-34746?
CVE-2026-34746 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-2026-34746?
Run the dependency tree command: 'npm ls payload'. 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-6r7f-q7f5-wpx8",
  "modified" : "2026-04-06T16:47:04Z",
  "published" : "2026-04-01T21:25:33Z",
  "aliases" : [ "CVE-2026-34746" ],
  "summary" : "Payload has Authenticated SSRF via Upload Functionality",
  "details" : "### Impact\n\nAn authenticated Server-Side Request Forgery (SSRF) vulnerability existed in the upload functionality.\n\nAuthenticated users with `create` or `update` access to an upload-enabled collection could cause the server to make outbound HTTP requests to arbitrary URLs.\n\nConsumers are affected if ALL of these are true:\n\n- Payload version **< v3.79.1**\n- At least one collection with `upload` enabled\n- An authenticated user has `create` or `update` access to that collection\n\n### Patches\n\nThis vulnerability has been patched in **v3.79.1**. Users should upgrade to **v3.79.1** or later.\n\n### Workarounds\n\nUntil consumers can upgrade:\n\n- Restrict `create` and `update` access to upload-enabled collections to trusted roles only.\n- Limit outbound network access from your Payload server where possible.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "payload"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.79.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/payloadcms/payload/security/advisories/GHSA-6r7f-q7f5-wpx8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-34746"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/payloadcms/payload"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/payloadcms/payload/releases/tag/v3.79.1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-01T21:25:33Z",
    "nvd_published_at" : "2026-04-01T20:16:26Z"
  }
}