CVE-2020-35509

keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity

Published Aug 23, 2022 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in keycloak affecting versions 11.0.3 and 12.0.0. An expired certificate would be accepted by the direct-grant authenticator because of missing time stamp validations. The highest threat from this vulnerability is to data confidentiality and integrity.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-6620 A flaw was found in keycloak affecting versions 11.0.3 and 12.0.0. An expired certificate would be accepted by the direct-grant authenticator because of missing time stamp validations. The highest threat from this vulnerability is to data confidentiality and integrity.
Github GHSA Github GHSA GHSA-rpj2-w6fr-79hc Keycloak vulnerable to Improper Certificate Validation
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00105}

epss

{'score': 0.00108}

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
Jun 30, 2025, 8:17 PM
Reserved
Dec 17, 2020, 12:00 AM
Status
Modified
Published
Aug 23, 2022, 4:15 PM
Modified
Jun 17, 2026, 3:13 AM
Severity
Low
Public date
Jan 4, 2021, 12:00 AM