GitHub Advisoryadvisory · npm, Maven
GHSA-r8jr-wg88-fq5c Keycloak vulnerable to authorization bypass via the Admin API
LOW
Official page ↗
- Aliases
- CVE-2026-2366
- Ecosystem
- npm, Maven
- Packages
- @keycloak/keycloak-admin-client, org.keycloak:keycloak-js-admin-client
- Severity
- Low
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-639
- Reviewed
- 2026-03-12
Affected packages
• npm @keycloak/keycloak-admin-client: <= 26.5.5 (no fix yet)
• Maven org.keycloak:keycloak-js-admin-client: <= 26.5.5 (no fix yet)
Description
A flaw was found in Keycloak. An authorization bypass vulnerability in the Keycloak Admin API allows any authenticated user, even those without administrative privileges, to enumerate the organization memberships of other users. This information disclosure occurs if the attacker knows the victim's unique identifier (UUID) and the Organizations feature is enabled.
Related
Alias · CVE (1)
- CVE-2026-2366 A flaw was found in Keycloak. vulnerability
Weakness · CWE (1)
- CWE-639 Authorization Bypass Through User-Controlled Key weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-2366 advisory
- https://github.com/keycloak/keycloak/issues/47062 web
- https://access.redhat.com/errata/RHSA-2026:6477 web
- https://access.redhat.com/errata/RHSA-2026:6478 web
- https://access.redhat.com/security/cve/CVE-2026-2366 web
- https://bugzilla.redhat.com/show_bug.cgi?id=2439081 web
- https://github.com/keycloak/keycloak package