CVE-2026-40910
frp has an authentication bypass in HTTP vhost routing when routeByHTTPUser is used for access control
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según GHSA (media).
Descripción
frp is a fast reverse proxy. From 0.43.0 to 0.68.0, frp contains an authentication bypass in the HTTP vhost routing path when routeByHTTPUser is used as part of access control. In proxy-style requests, the routing logic uses the username from Proxy-Authorization to select the routeByHTTPUser backend, while the access control check uses credentials from the regular Authorization header. As a result, an attacker who can reach the HTTP vhost entrypoint and knows or can guess the protected routeByHTTPUser value may access a backend protected by httpUser / httpPassword even with an incorrect Proxy-Authorization password. This issue affects deployments that explicitly use routeByHTTPUser. It does not affect ordinary HTTP proxies that do not use this feature. This vulnerability is fixed in 0.68.1.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| go::GitHub Security Advisory Go | github.com/fatedier/frp | 0.68.1 |
| rapidfort alpine 3.20 | frp | sin corrección indicada |
| rapidfort alpine 3.21 | frp | sin corrección indicada |
| rapidfort alpine 3.22 | frp | sin corrección indicada |
| rapidfort alpine 3.23 | frp | sin corrección indicada |
| rapidfort alpine 3.24 | frp | sin corrección indicada |