CVE-2023-0091

keycloak: Client Registration endpoint does not check token revocation

Published Jan 11, 2023 CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed
Description
A flaw was found in Keycloak, where it did not properly check client tokens for possible revocation in its client credential flow. This flaw allows an attacker to access or modify potentially sensitive information.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-0552 A flaw was found in Keycloak, where it did not properly check client tokens for possible revocation in its client credential flow. This flaw allows an attacker to access or modify potentially sensitive information.
Github GHSA Github GHSA GHSA-v436-q368-hvgg Keycloak has lack of validation of access token on client registrations endpoint
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Apr 9, 2025, 2:09 PM
Reserved
Jan 5, 2023, 8:27 PM
Status
Modified
Published
Jan 13, 2023, 6:15 AM
Modified
Jun 17, 2026, 5:24 AM
Severity
Low
Public date
Oct 28, 2022, 12:00 AM