SB2026040759 - Improper access control in Parse Server

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Main Vulnerability Database SB2026040759

SB2026040759 - Improper access control in Parse Server

Published: April 7, 2026

Security Bulletin ID SB2026040759
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: CVE-2026-31872)

CWE-ID: -

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to improper access control in the protectedFields class-level permission enforcement when processing query WHERE clauses and sort parameters that use dot-notation. A remote attacker can send specially crafted queries or sort parameters using dot-notation to disclose sensitive information.

This affects both MongoDB and PostgreSQL deployments and enables a binary oracle attack to enumerate protected field values.


Remediation

Install update from vendor's website.

References