CVE-2026-41896
Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-287
Autenticación incorrecta
Fecha de publicación:
29/06/2026
Última modificación:
30/06/2026
Descripción
*** Pendiente de traducción *** Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, the HMAC key is the application's manual_webhook_secret_github field, which is used by Coolify's webhook endpoints to validate incoming requests, is nullable with no default — meaning newly created applications have a null webhook secret. PHP's hash_hmac() function silently coerces a null key to an empty string ''. So when the secret is null, the server computes hash_hmac('sha256', $payload, '') — a deterministic value that any attacker can calculate independently. By sending X-Hub-Signature-256: sha256=, an unauthenticated attacker can forge a valid signature and trigger deployments. This vulnerability is fixed in 4.0.0-beta.474.
Impacto
Puntuación base 3.x
7.50
Gravedad 3.x
ALTA