GHSA-9g98-5mj6-f9mv

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    GHSA-9g98-5mj6-f9mv

    Published: 2 Mar 2023Last Modified: 10 Sept 2026
    Aliases:
    CVE-2023-0264

    Summary: Keycloak vulnerable to user impersonation via stolen UUID code

    Details: Keycloak's OpenID Connect user authentication was found to incorrectly authenticate requests. An authenticated attacker who could also obtain a certain piece of info from a user request, from a victim within the same realm, could use that data to impersonate the victim and generate new session tokens.

    References: https://github.com/keycloak/keycloak/security/advisories/GHSA-9g98-5mj6-f9mv, https://nvd.nist.gov/vuln/detail/CVE-2023-0264, https://github.com/keycloak/keycloak/commit/ec8109112e67208c13e13f6d1f8706a5a3ba8d4c, https://access.redhat.com/security/cve/CVE-2023-0264, https://github.com/keycloak/keycloak

    Affected packages

    Package

    Name: org.keycloak:keycloak-services

    Purl: pkg:maven/org.keycloak/keycloak-services

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -21.0.1

    Affected versions

    1.0-alpha-1

    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
    GHSA-9g98-5mj6-f9mv | CVE-DB