CVE-2026-44850

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, 2.39.2, and 2.41.0, Portainer offers an environment-level Disable bind mounts for non-administrators security setting that blocks regular users from binding host paths into containers they create through the Portainer-mediated Docker API. The check that enforces this setting only inspected the legacy HostConfig.Binds array on the container-create proxy and never looked at the equivalent HostConfig.Mounts array. Any authenticated user with rights to create containers on a Docker environment where the restriction is enabled could submit a bind-typed entry under HostConfig.Mounts and mount any host path into their container. This vulnerability is fixed in 2.33.8, 2.39.2, and 2.41.0.
References
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:portainer:portainer:*:*:*:*:community:*:*:*
cpe:2.3:a:portainer:portainer:*:*:*:*:community:*:*:*
cpe:2.3:a:portainer:portainer:2.40.0:*:*:*:community:*:*:*

History

21 Jul 2026, 10:10

Type Values Removed Values Added
Summary
  • (es) Portainer Community Edition es una plataforma ligera de entrega de servicios para aplicaciones en contenedores que puede usarse para gestionar entornos Docker, Swarm, Kubernetes y ACI. Desde 2.33.0 hasta antes de 2.33.8, 2.39.2 y 2.41.0, Portainer ofrece una configuración de seguridad a nivel de entorno Deshabilitar montajes de enlace para no administradores que impide a los usuarios regulares enlazar rutas de host en los contenedores que crean a través de la API de Docker mediada por Portainer. La comprobación que aplica esta configuración solo inspeccionaba el array HostConfig.Binds heredado en el proxy de creación de contenedores y nunca examinó el array HostConfig.Mounts equivalente. Cualquier usuario autenticado con derechos para crear contenedores en un entorno Docker donde la restricción está habilitada podría enviar una entrada de tipo enlace bajo HostConfig.Mounts y montar cualquier ruta de host en su contenedor. Esta vulnerabilidad se corrige en 2.33.8, 2.39.2 y 2.41.0.

01 Jun 2026, 17:59

Type Values Removed Values Added
CPE cpe:2.3:a:portainer:portainer:2.40.0:*:*:*:community:*:*:*
cpe:2.3:a:portainer:portainer:*:*:*:*:community:*:*:*
References () https://github.com/portainer/portainer/security/advisories/GHSA-7fw3-x4r2-g7wc - () https://github.com/portainer/portainer/security/advisories/GHSA-7fw3-x4r2-g7wc - Exploit, Third Party Advisory
First Time Portainer
Portainer portainer

28 May 2026, 22:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-28 22:16

Updated : 2026-07-21 10:10


NVD link : CVE-2026-44850

Mitre link : CVE-2026-44850

CVE.ORG link : CVE-2026-44850


JSON object : View

Products Affected

portainer

  • portainer
CWE
CWE-863

Incorrect Authorization