SB2026040764 - Improper Authentication in Parse Server

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Main Vulnerability Database SB2026040764

SB2026040764 - Improper Authentication in Parse Server

Published: April 7, 2026

Security Bulletin ID SB2026040764
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Authentication (CVE-ID: CVE-2026-30949)

CWE-ID: CWE-287 - Improper Authentication

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


The vulnerability allows a remote user to authenticate as any user.

The vulnerability exists due to improper authentication in the Keycloak authentication adapter when validating Keycloak access tokens. A remote user can present a valid access token issued for a different client application in the same Keycloak realm to authenticate as any user.

Only deployments that use the Keycloak authentication adapter with a Keycloak realm containing multiple client applications are vulnerable.


Remediation

Install update from vendor's website.

References