CVE-2026-37981

MediumCVSS 4.3/10Last modified Jun 17, 2026

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

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-1220

Affected software

No affected versions have been published.

Timeline

Published: May 19, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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