SB2026040781 - Incorrect authorization in Parse Server



SB2026040781 - Incorrect authorization in Parse Server

Published: April 7, 2026

Security Bulletin ID SB2026040781
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) Incorrect authorization (CVE-ID: CVE-2026-30854)

CWE-ID: CWE-863 - Incorrect Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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 incorrect authorization in the GraphQL introspection control for __type queries when processing __type queries nested inside inline fragments. A remote attacker can send a specially crafted GraphQL query to disclose sensitive information.

Only __type introspection is affected; __schema introspection is not affected. The issue is exposed when public introspection is disabled.


Remediation

Install update from vendor's website.