CVE-2020-27838

high-risk
Published 2021-03-08

A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this vulnerability is to data confidentiality.

Do I need to act?

!
85.1% chance of exploitation in next 30 days
EPSS score — higher than 15% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Redhat

References (2)

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1906797
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1906797
51
/ 100
high-risk
Severity 24/34 · High
Exploitability 20/34 · Moderate
Exposure 7/34 · Low