CVE WatchOct 8, 2026

CVE-2026-93858

In OpenStack Mistral through 23.0.0, the std.ssh_proxied action passes a caller-supplied proxy_command value directly to paramiko.ProxyComma

CVSS

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No CVSS

EPSS

0.4%

p37

KEV

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Exploit Today

0-100

Published: Oct 8, 2026 · Last modified: Oct 8, 2026 · CWE-78

EPSS · 30d

0.4%EPSS · 30 days0.4%

2026-10-092026-10-25

Technical description

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.

Official references

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