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CVE-2026-37981

nvd nist
Published: May 19, 2026Modified: Jun 17, 2026

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4.3
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Exploitability: 2.8 / Impact: 1.4
Source: secalert@redhat.com (Secondary)

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.

Affected (1)

Redhat
1 product
Build Of Keycloak
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Build Of Keycloak
From 26.4 to 26.4.12

Related CWEs

CWE-1220
Insufficient Granularity of Access Control
The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets.

References (4)

Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Vendor Advisory

Timeline

No history available yet.