CVE-2026-37981

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.

Traduire en français

Produits concernés

• Red Hat build of Keycloak 26.4
• Red Hat build of Keycloak 26.4.12
• Redhat build of keycloak

Scores CVSS

Faiblesses (CWE)

• CWE-1220

Références

• https://access.redhat.com/errata/RHSA-2026:19596 Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:19597 Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2026-37981 Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2455326 Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories