CVE-2026-2366
Keycloak: keycloak: information disclosure via authorization bypass in admin api
CVSS Score
3.1
EPSS Score
0.0%
EPSS Percentile
8th
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.
| CWE | CWE-639 |
| Vendor | red hat |
| Product | red hat build of keycloak 26.4 |
| Published | Mar 12, 2026 |
| Last Updated | Apr 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4.11
All versions affected References
Credits
Red Hat would like to thank Joy Gilbert and Reynaldo Immanuel for reporting this issue.