HomeCVE Intelligence › CVE-2026-44850
CVSS 8.5 HIGH Vulnerability

CVE-2026-44850: Portainer has a bind-mount restriction bypass via HostConfig.Mounts

Summary 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 Dock…

8.5CVSS Score
HIGHSeverity
NOCISA KEV
VulnerabilityImpact Type

📋 Vulnerability Details

CVE IDCVE-2026-44850
Vendorgo
Affected Productgithub.com/portainer/portainer
Vulnerability TypeVulnerability
CVSS Score8.5 (HIGH)
Actively Exploited❌ No known exploitation
Patch StatusSee Vendor Advisory →
Reported ByCYBERDUDEBIVASH SENTINEL APEX Intelligence (via github_advisories)

🔬 Technical Analysis

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Summary 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. The two fields are interchangeable on the Docker daemon — both produce real bind mounts at runtime — so a check that inspects only one is functionally equivalent to no

📚 Advisory References

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