CVE-2026-93858 (GCVE-0-2026-93858)

Vulnerability from cvelistv5 – Published: 2026-10-08 17:28 – Updated: 2026-10-08 17:56
VLAI
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.
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
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 17:56 UTC
CWE
  • CWE-78 - OS Command Injection
Assigner
mitre CNA under the mitre root
CNA scorecard E 27/100 over 2373 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
OpenStack Mistral Affected: 0 , < 20.1.1 (semver)
Affected: 21.0.0 , < 21.0.1 (semver)
Affected: 22.0.0 , < 22.0.1 (semver)
Affected: 23.0.0 (semver)
guessed Create a notification for this product.
Show details on NVD website
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