GHSA-2935-2wfm-hhpv

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    GHSA-2935-2wfm-hhpv

    Published: 25 Mar 2025Last Modified: 30 Apr 2025
    Aliases:
    CVE-2025-2559

    Summary: Keycloak Denial of Service (DoS) Vulnerability via JWT Token Cache

    Details: A flaw was found in Keycloak. When the configuration uses JWT tokens for authentication, the tokens are cached until expiration. If a client uses JWT tokens with an excessively long expiration time, for example, 24 or 48 hours, the cache can grow indefinitely, leading to an OutOfMemoryError. This issue could result in a denial of service condition, preventing legitimate users from accessing the system.

    References: https://nvd.nist.gov/vuln/detail/CVE-2025-2559, https://access.redhat.com/errata/RHSA-2025:4335, https://access.redhat.com/errata/RHSA-2025:4336, https://access.redhat.com/security/cve/CVE-2025-2559, https://bugzilla.redhat.com/show_bug.cgi?id=2353868, 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 -None

    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-2935-2wfm-hhpv | CVE-DB