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CVE-2026-37981

4.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 4

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 4.3 · redhatNVD modified 2026-10-26 13:10

Affected (CPE criteria) 1

  • cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*

References 4