CVE-2026-44850

Source
https://cve.org/CVERecord?id=CVE-2026-44850
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44850.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44850
Aliases
Downstream
Related
Published
2026-05-28T21:03:16.797Z
Modified
2026-08-12T03:51:15.917355185Z
Severity
  • 8.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N CVSS Calculator
Summary
Portainer: Bind-mount restriction bypass via HostConfig.Mounts
Details

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.

Database specific
{
    "cwe_ids": [
        "CWE-863"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44850.json"
}
References

Affected packages

Git / github.com/portainer/portainer

Affected ranges

Type
GIT
Repo
https://github.com/portainer/portainer
Events
Database specific
Show details
{
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ],
    "extracted_events": [
        {
            "introduced": "2.33.0"
        },
        {
            "fixed": "2.33.8"
        },
        {
            "introduced": "2.34.0"
        },
        {
            "fixed": "2.39.1"
        },
        {
            "introduced": "2.40.0"
        },
        {
            "last_affected": "2.40.0"
        }
    ],
    "cpe": [
        "cpe:2.3:a:portainer:portainer:*:*:*:*:community:*:*:*",
        "cpe:2.3:a:portainer:portainer:2.40.0:*:*:*:community:*:*:*"
    ]
}

Affected versions

2.*
2.40.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44850.json"