Improper Access Control Affecting keycloak-advanced-compat package, versions <26.5.7-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.2% (11th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-KEYCLOAKADVANCEDCOMPAT-15922573
  • published7 Apr 2026
  • disclosed23 Mar 2026

Introduced: 23 Mar 2026

CVE-2026-4628  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade Minimos:latest keycloak-advanced-compat to version 26.5.7-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keycloak-advanced-compat package and not the keycloak-advanced-compat package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access (UMA) resource_set endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control checks on PUT operations to the resource_set endpoint. This issue enables unauthorized modification of protected resources, impacting data integrity.

CVSS Base Scores

version 3.1