CVE-2026-44850
Published:May 28, 2026
Updated:June 13, 2026
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.
Affected Packages
https://github.com/portainer/portainer.git (GITHUB):
Affected version(s) >=2.39.0 <2.39.2Fix Suggestion:
Update to version 2.39.2https://github.com/portainer/portainer.git (GITHUB):
Affected version(s) >=2.33.0 <2.33.8Fix Suggestion:
Update to version 2.33.8https://github.com/portainer/portainer.git (GITHUB):
Affected version(s) =2.40.0 <2.41.0Fix Suggestion:
Update to version 2.41.0github.com/portainer/portainer (GO):
Affected version(s) >=2.33.0 <2.33.8Fix Suggestion:
Update to version 2.33.8github.com/portainer/portainer (GO):
Affected version(s) =2.40.0 <2.41.0Fix Suggestion:
Update to version 2.41.0github.com/portainer/portainer (GO):
Affected version(s) >=2.39.0 <2.39.2Fix Suggestion:
Update to version 2.39.2Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
EPSS
Base Score:
0.04