CVE-2026-9088 PUBLISHED

Keycloak: keycloak: information disclosure due to user profile permission bypass

Assigner: redhat
Reserved: 20.05.2026 Published: 05.06.2026 Updated: 05.06.2026

A flaw was found in org.keycloak.services. An administrator with delegated access to read group memberships and users can bypass user profile permissions by accessing the group members endpoint. This allows the administrator to view user attributes that are explicitly configured to be denied, leading to information disclosure.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 2.7

Product Status

Vendor Red Hat
Product Red Hat Build of Keycloak
Versions Default: affected

Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Credits

  • Red Hat would like to thank Hadley So for reporting this issue.

References

Problem Types

  • Insufficient Granularity of Access Control CWE