En resumen
- CVE-2026-37981 es una vulnerabilidad MEDIO (CVSS 4.3) que afecta a org.keycloak:keycloak-services, build of keycloak (redhat).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.37%, mayor que el 31.0% de las vulnerabilidades.
- Solución: actualizar a 26.6.2, 26.4.12 o posterior.
Description
Keycloak's 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.
NVD 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.
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