Authorization Bypass Through User-Controlled Key Affecting payload package, versions >=3.0.0 <3.90.0>=4.0.0-canary.0 <4.0.0-canary.34


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.25% (16th percentile)

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  • Snyk IDSNYK-JS-PAYLOAD-20571409
  • published8 Oct 2026
  • disclosed6 Oct 2026
  • creditUnknown

Introduced: 6 Oct 2026

NewCVE-2026-105847  (opens in a new tab)
CWE-639  (opens in a new tab)

How to fix?

Upgrade payload to version 3.90.0, 4.0.0-canary.34 or higher.

Overview

payload is a Node, React and MongoDB Headless CMS and Application Framework

Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via polymorphic join query validation in validateSearchParams.ts, where hidden or read-restricted fields are not rejected when used as filter conditions in polymorphic join queries. An authenticated user with query access can probe field values - including password-reset tokens - by observing differences in query responses, effectively inferring data they are not authorized to read.

CVSS Base Scores

version 4.0
version 3.1