Authorization Bypass Through User-Controlled Key Affecting org.keycloak:keycloak-services package, versions [,26.7.2)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-JAVA-ORGKEYCLOAK-19006508
  • published20 Aug 2026
  • disclosed14 Jul 2026
  • creditUnknown

Introduced: 14 Jul 2026

CVE-2026-15945  (opens in a new tab)
CWE-639  (opens in a new tab)

How to fix?

Upgrade org.keycloak:keycloak-services to version 26.7.2 or higher.

Overview

org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services.

Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key through the admin API’s group hierarchy search under FGAP v2. An attacker can view full parent-group details by searching for a child group they can access, causing the API to return hidden ancestor groups with sensitive attributes and configuration.

CVSS Base Scores

version 4.0
version 3.1