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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-37981 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://access.redhat.com/errata/RHSA-2026:19596 Red Hat, Inc. Vendor Advisory 
https://access.redhat.com/errata/RHSA-2026:19597 Red Hat, Inc. Vendor Advisory 
https://access.redhat.com/security/cve/CVE-2026-37981 Red Hat, Inc. Vendor Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2455326 Red Hat, Inc. Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-1220 Insufficient Granularity of Access Control Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-37981
NVD Published Date:
05/19/2026
NVD Last Modified:
06/17/2026
Source:
Red Hat, Inc.