CVE-2026-44850
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/portainer/portainer | >=2.33.0,<2.33.8 | 2.33.8 |
| Go | github.com/portainer/portainer | >=2.39.0,<2.39.2 | 2.39.2 |
| Go | github.com/portainer/portainer | >=2.40.0,<2.41.0 | 2.41.0 |
| GO | github.com/portainer/portainer | >= 2.40.0, < 2.41.0 | 2.41.0 |
| GO | github.com/portainer/portainer | >= 2.39.0, < 2.39.2 | 2.39.2 |
| GO | github.com/portainer/portainer | >= 2.33.0, < 2.33.8 | 2.33.8 |
References
- https://github.com/portainer/portainer/security/advisories/GHSA-7fw3-x4r2-g7wc
- https://github.com/portainer/portainer
- https://github.com/portainer/portainer/releases/tag/2.33.8
- https://github.com/portainer/portainer/releases/tag/2.39.2
- https://github.com/portainer/portainer/releases/tag/2.41.0
- https://github.com/advisories/GHSA-7fw3-x4r2-g7wc
CWEs
CWE-863
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.