CVE-2026-105847: Payload Polymorphic Join Queries Could Disclose Vulnerability

HIGH
Advisory Identifier: GHSA-fpww-c55p-cjv6
Share
CWE-639 CWE-200
Published
Advisory Summary

CVE-2026-105847 is a HIGH polymorphic join queries could disclose vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting Payload libraries in the npm ecosystem. The issue involves polymorphic join queries could disclose hidden fields. Remediation is available by upgrading affected packages to version 3.90.0, 4.0.0-canary.34.

CVE-2026-105847 at a Glance

CVE Identifier CVE-2026-105847
GHSA Identifier GHSA-fpww-c55p-cjv6
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-639: Authorization Bypass Through User-Controlled Key
Affected Product Payload
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-105847

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: 3.90.0 
npm install payload@3.90.0
payload fixed: 4.0.0-canary.34 
npm install payload@4.0.0-canary.34
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-2026-105847, 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 3.90.0), 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-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. 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 A user with query access could use polymorphic join filters to infer hidden or read-restricted field values, including password-reset tokens. You are affected if: - You use an affected Payload version. - Users can query a collection with a polymorphic join to sensitive fields. ### Patches Users should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`. ### Workarounds There is no complete workaround. Restricting read access to sensitive collections reduces exposure but does not replace upgrading.

CVE-2026-105847 Affected Payload Versions

2 component(s)
Fixed Versions:
3.90.04.0.0-canary.34
Product / Package Ecosystem Affected Versions Fixed Version
payload
npm/payload
npm
≥ 3.0.0
< 3.90.0
3.90.0
payload
npm/payload
npm
≥ 4.0.0-canary.0
< 4.0.0-canary.34
4.0.0-canary.34

References

GitHub Advisory / Wiki ADVISORY
https://github.com/payloadcms/payload/security/advisories/GHSA-fpww-c55p-cjv6
Security Fix Commit FIX COMMIT
https://github.com/payloadcms/payload/commit/caa3f69b5aecc6e7c2b459ed87972cbca9f33ee5
Payload Source Repository REPOSITORY
https://github.com/payloadcms/payload
Payload Release RELEASE
https://github.com/payloadcms/payload/releases/tag/v3.90.0

Frequently Asked Questions

What is CVE-2026-105847?
CVE-2026-105847 is a security vulnerability in Payload involving Polymorphic join queries could disclose hidden fields under CWE-639: Authorization Bypass Through User-Controlled Key.
Which Payload versions are affected?
Affected versions include releases prior to 3.90.0, 4.0.0-canary.34 across affected packages: payload.
What version fixes CVE-2026-105847?
Upgrading to 3.90.0, 4.0.0-canary.34 (or the latest patched release for your respective branch) resolves the vulnerability.
Is payload affected?
Yes, payload is affected in releases prior to 3.90.0, 4.0.0-canary.34. Upgrade your dependency to 3.90.0, 4.0.0-canary.34 or later.
What CWE is associated with CVE-2026-105847?
CVE-2026-105847 is classified under CWE-639: Authorization Bypass Through User-Controlled Key (The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.).
How can I check npm dependencies for CVE-2026-105847?
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-fpww-c55p-cjv6",
  "modified" : "2026-10-06T16:09:04Z",
  "published" : "2026-10-06T16:09:04Z",
  "aliases" : [ "CVE-2026-105847" ],
  "summary" : "Payload: Polymorphic join queries could disclose hidden fields",
  "details" : "### Impact\n\nA user with query access could use polymorphic join filters to infer hidden or read-restricted field values, including password-reset tokens.\n\nYou are affected if:\n\n- You use an affected Payload version.\n- Users can query a collection with a polymorphic join to sensitive fields.\n\n### Patches\n\nUsers should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`.\n\n### Workarounds\n\nThere is no complete workaround. Restricting read access to sensitive collections reduces exposure but does not replace upgrading.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "payload"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.90.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "payload"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0-canary.0"
      }, {
        "fixed" : "4.0.0-canary.34"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/payloadcms/payload/security/advisories/GHSA-fpww-c55p-cjv6"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/payloadcms/payload/commit/caa3f69b5aecc6e7c2b459ed87972cbca9f33ee5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/payloadcms/payload"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/payloadcms/payload/releases/tag/v3.90.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-639" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-06T16:09:04Z",
    "nvd_published_at" : null
  }
}