CVE-2026-27734

MEDIUM

6.5

Descripcion

Beszel is a server monitoring platform. Prior to version 0.18.2, the hub's authenticated API endpoints GET /api/beszel/containers/logs and GET /api/beszel/containers/info pass the user-supplied "container" query parameter to the agent without validation. The agent constructs Docker Engine API URLs using fmt.Sprintf with the raw value instead of url.PathEscape(). Since Go's http.Client does not sanitize `../` sequences from URL paths sent over unix sockets, an authenticated user (including readonly role) can traverse to arbitrary Docker API endpoints on agent hosts, exposing sensitive infrastructure details. Version 0.18.4 fixes the issue.

Detalles CVE

Puntuacion CVSS v3.16.5

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado2/27/2026

Ultima modificacion3/4/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

beszel:beszel

Debilidades (CWE)

CWE-22

Referencias

https://github.com/henrygd/beszel/releases/tag/v0.18.4(security-advisories@github.com)

https://github.com/henrygd/beszel/security/advisories/GHSA-phwh-4f42-gwf3(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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