CVE-2020-1694: Incorrect Permission Assignment in Keycloak

org.keycloak:keycloak-parent Updated 02 Oct 2025

Summary

09/02/2022

Disclosed on

CVE-2020-1694

CVE

Yes i

Fix available

Moderate

Severity

4.9

CVSS Score

CVE-2020-1694: Incorrect Permission Assignment for Critical Resource and Permissive List of Allowed Inputs in Keycloak. Affects org.keycloak:keycloak-parent versions < 10.0.0. Fixed in 10.0.0. How to fix ↓

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Background

Keycloak is an open-source identity and access management solution that allows organizations to secure their applications and services. It provides features such as single sign-on, user authentication, and authorization. Keycloak is widely used in various industries to manage user access and permissions.

Vulnerability Detail

The vulnerability identified as CVE-2020-1694 affects all versions of Keycloak before 10.0.0. It is caused by an incorrect permission assignment for a critical resource and a permissive list of allowed inputs. This flaw allows some users to access sensitive information outside of their authorized permissions. The NodeJS adapter in Keycloak does not support the verify-token-audience, which leads to this vulnerability. The impact of this vulnerability can result in unauthorized access to sensitive data and potential data breaches.

How To Fix

Minimum fixed version

10.0.0

This is the first release that contains the fix.

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Workaround

There is no specific workaround provided for this vulnerability. Upgrading to the fixed version is the recommended solution.

Conclusion

The vulnerability in Keycloak, identified as CVE-2020-1694, allows unauthorized access to sensitive information. It is crucial to upgrade Keycloak to version 10.0.0 or later to mitigate this vulnerability. For further support on vulnerability remediation, contact DevNack.com.

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