CVE-2026-58399
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-287
Autenticación incorrecta
Fecha de publicación:
01/07/2026
Última modificación:
02/07/2026
Descripción
*** Pendiente de traducción *** @acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken() through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for auth-user: service-brother when req.get('host').startsWith(getHostName()). Both values involved in the check can be influenced by an unauthenticated HTTP client: auth-user is a request header, and Host is also client-controlled. As a result, a remote unauthenticated attacker can send a request with crafted headers and bypass token validation before the normal legacy/JWT/OIDC validation logic runs. A fix has been implemented in v2.3.0.
Impacto
Puntuación base 4.0
8.70
Gravedad 4.0
ALTA