CVE-2026-93858 (GCVE-0-2026-93858)
Vulnerability from cvelistv5
Published
2026-10-08 17:28
Modified
2026-10-08 17:56
Severity ?
8.7 (High) - 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
CWE
  • CWE-78 - OS Command Injection
Summary
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.
References
Impacted products
Vendor Product Version
OpenStack Mistral Version: 0   ≤
Version: 21.0.0   ≤
Version: 22.0.0   ≤
Version: 23.0.0   ≤
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