Authorization Bypass Through User-Controlled Key Affecting parse-server package, versions >=9.0.0 <9.10.1-alpha.13<8.6.93


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.2% (10th percentile)

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  • Snyk IDSNYK-JS-PARSESERVER-21277856
  • published20 Oct 2026
  • disclosed12 Oct 2026
  • creditWu Wenhao

Introduced: 12 Oct 2026

NewCVE-2026-109303  (opens in a new tab)
CWE-639  (opens in a new tab)

How to fix?

Upgrade parse-server to version 9.10.1-alpha.13, 8.6.93 or higher.

Overview

parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js.

Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the runCount function in src/RestQuery.js, where a relation count query fails to pass authentication context to the database find call, allowing an authenticated attacker to bypass protectedFields restrictions configured for identity-scoped groups. This exposes fields that should be hidden from the requesting user when a count query is issued over a relation.

CVSS Base Scores

version 4.0
version 3.1