CVE-2026-27734

MEDIUM

6.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.16.5

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado2/27/2026

Ultima modificacao3/4/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

beszel:beszel

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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