CVE-2020-27838

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    CVE-2020-27838

    Published: 8 Mar 2021Last Modified: 7 Aug 2026

    Summary:

    Details: 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.

    References: https://bugzilla.redhat.com/show_bug.cgi?id=1906797

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -af1855ebc6a3d025b58b697c9bc32567fb512eec

    Affected versions

    2.4.0.Test

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2020-27838 | CVE-DB