Riskcovery

CVE-2026-16108

Keycloak-services: keycloak-services: realm default-group reads disclose hidden groups under fgap v2

State
Published
Severity
4.3 Medium
Published
Jul 17, 2026
Updated
Sep 16, 2026
Reserved
Jul 17, 2026

Read the record on cve.org

Description

A flaw was found in the default-groups REST endpoint and realm representation of Keycloak. This component is responsible for managing groups that are automatically assigned to new users within a realm. The issue allows a delegated administrator with realm-viewing permissions to see the names and identifiers of hidden default groups, even if they lack the specific permissions to view those groups. This can lead to the exposure of sensitive organizational structures or internal group names.

Scores

CVSSScoreVectorSource
3.14.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nredhat

Weaknesses

  • CWE-1220 Insufficient Granularity of Access Control
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

ProductVersions
Red Hat build of Keycloak 26.6Red Hat
  • 26.6.7-3 and laterNot affected
Red Hat build of Keycloak 26.6Red Hat
  • 26.6-20 and laterNot affected
Red Hat build of Keycloak 26.6Red Hat
  • 26.6-20 and laterNot affected
Red Hat build of Keycloak 26.6.7Red Hat
    Red Hat build of Keycloak 26.6.7Red Hat
      Red Hat build of Keycloak 26.6.7Red Hat
        Red Hat Data Grid 8Red Hat
          Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat
            Red Hat Single Sign-On 7Red Hat

              References

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