CVE-2026-37981
Published: May 19, 2026
Modified: May 20, 2026
CVSS v3.1
4.3
Description
A flaw was found in Keycloak. A broken access control vulnerability in the Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access (UMA) resource, to enumerate and harvest personally identifiable information (PII) for all realm users. By sending crafted requests with arbitrary usernames or email values, the endpoint returns full profile objects for unrelated users. This leads to broad profile-level information disclosure.
| Vendor | Product | Versions |
|---|---|---|
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4.12-1 - < * |
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4-17 - < * |
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4-17 - < * |
Red Hat | Red Hat build of Keycloak 26.4.12 | All versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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