CVE-2026-93858

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Source
https://cve.org/CVERecord?id=CVE-2026-93858
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93858.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-93858
Downstream
Published
2026-10-08T17:28:58Z
Modified
2026-10-10T02:47:32Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:N/SA:N CVSS Calculator
Summary
[none]
Details

In OpenStack Mistral through 23.0.0, the std.ssh_proxied action passes a caller-supplied proxy_command value directly to paramiko.ProxyCommand() before any SSH connection to a gateway or target host is attempted. An authenticated project member can use the standard action-execution API to submit an arbitrary local command as proxy_command; paramiko starts that command as a subprocess on the executor host under the executor's own service account, independent of whether the SSH connection itself ever succeeds. Only Mistral deployments that permit the std.ssh_proxied action, the default configuration, are affected.

Database specific 
{
    "cna_assigner": "mitre",
    "cwe_ids": [
        "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93858.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "20.1.1"
                },
                {
                    "introduced": "21.0.0"
                },
                {
                    "fixed": "21.0.1"
                },
                {
                    "introduced": "22.0.0"
                },
                {
                    "fixed": "22.0.1"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / opendev.org/openstack/mistral

Affected ranges

Type
GIT
Repo
https://opendev.org/openstack/mistral
Events
Introduced
a28388efe2dab9d20e444fa6322cdc87372bbd41
Last Affected
a28388efe2dab9d20e444fa6322cdc87372bbd41
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "23.0.0"
        },
        {
            "last_affected": "23.0.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

23.*
23.0.0
23.0.0.0rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93858.json"