BIT-keycloak-2026-9799

    Dashboard / Vulnerabilities / BIT-keycloak-2026-9799

    BIT-keycloak-2026-9799

    Published: 25 Aug 2026Last Modified: 29 Oct 2026

    Summary: Keycloak: keycloak: unauthorized access to resources via uma permission ticket bypass

    Details: A flaw was found in org.keycloak.authorization. An authenticated user with a granted User-Managed Access (UMA) permission ticket for one resource can exploit this by using a specific permission request prefix to bypass per-resource access control. This allows the user to gain unauthorized access to all resources of that type within the same resource server, even if they do not have a ticket for those specific resources. This vulnerability requires the resource server to be configured in PERMISSIVE policy enforcement mode and affects typed resources with ownerManagedAccess enabled, where no explicit policy protects the resource type. The primary consequence is unauthorized information disclosure or modification of resources.

    References: https://access.redhat.com/errata/RHSA-2026:30049, https://access.redhat.com/errata/RHSA-2026:30050, https://access.redhat.com/errata/RHSA-2026:30083, https://access.redhat.com/errata/RHSA-2026:30084, https://access.redhat.com/security/cve/CVE-2026-9799, https://bugzilla.redhat.com/show_bug.cgi?id=2482471, https://nvd.nist.gov/vuln/detail/CVE-2026-9799

    Affected packages

    Package

    Name: keycloak

    Purl: pkg:bitnami/keycloak

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 26.4.0
    Fixed -26.4.13

    Affected versions

    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
    BIT-keycloak-2026-9799 | CVE-DB