CVE-2026-93858
CVE-2026-93858
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.7 · High · EPSS 0.4% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
mistral
- Versions
- ≥ 0, < 20.1.1: Affected (semver)
- ≥ 21.0.0, < 21.0.1: Affected (semver)
- ≥ 22.0.0, < 22.0.1: Affected (semver)
- 23.0.0: Affected (semver)
Update to 20.1.1; Update to 21.0.1; Update to 22.0.1
mistral Debian:12
- Versions
- 15.0.0-1
- 15.0.0-1+deb12u1
- 16.0.0-1
- 16.0.0-2
- 16.0.0-3
- 16.0.0-4
- 16.0.0~rc1-1
- 17.0.0-1
- 17.0.0-2
- 17.0.0-3
- 17.0.0~rc1-1
- 18.0.0~rc1-1
- 18.0.1-1
- 19.0.0-1
- 19.0.0-2
- 19.0.0~rc1-1
- 19.0.0~rc1-2
- 20.0.0-1
- 20.0.0-2
- 20.0.0~rc1-1
- 20.0.0~rc1-2
- 21.0.0-1
- 21.0.0-2
- 21.0.0-4
- 21.0.0-5
- 21.0.0-6
- 21.0.0~rc1-1
- 21.0.0~rc1-2
- 22.0.0-1
- 22.0.0-3
- 22.0.0~rc1-1
- 22.0.0~rc1-2
- 22.0.0~rc1-3
- 23.0.0-1
- 23.0.0-2
- 23.0.0~rc1-1
- 23.0.0~rc1-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Debian:13
- Versions
- 20.0.0-2
- 20.0.0-2+deb13u1
- 21.0.0-1
- 21.0.0-2
- 21.0.0-4
- 21.0.0-5
- 21.0.0-6
- 21.0.0~rc1-1
- 21.0.0~rc1-2
- 22.0.0-1
- 22.0.0-3
- 22.0.0~rc1-1
- 22.0.0~rc1-2
- 22.0.0~rc1-3
- 23.0.0-1
- 23.0.0-2
- 23.0.0~rc1-1
- 23.0.0~rc1-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Debian:14
- Versions
- 20.0.0-2
- 21.0.0-1
- 21.0.0-2
- 21.0.0-4
- 21.0.0-5
- 21.0.0-6
- 21.0.0~rc1-1
- 21.0.0~rc1-2
- 22.0.0-1
- 22.0.0-3
- 22.0.0~rc1-1
- 22.0.0~rc1-2
- 22.0.0~rc1-3
- 23.0.0-1
- 23.0.0~rc1-1
- 23.0.0~rc1-2
- Affected ranges
- ECOSYSTEM: < 23.0.0-2
Update to 23.0.0-2
mistral Ubuntu:Pro:16.04:LTS
- Versions
- 1.0.0-1
- 1.0.0-4
- 2.0.0~b3-3
- 2.0.0~rc1-1
- 2.0.0~rc2-1
- 2.0.0-1
- 2.0.0-1ubuntu2
- 2.0.0-1ubuntu2+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:Pro:18.04:LTS
- Versions
- 5.0.0-0ubuntu1
- 6.0.0~b1-0ubuntu1
- 6.0.0~b1-0ubuntu2
- 6.0.0~b2-0ubuntu1
- 6.0.0~rc1-0ubuntu1
- 6.0.0-0ubuntu1
- 6.0.0-0ubuntu1.1
- 6.0.0-0ubuntu1.1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:20.04:LTS
- Versions
- 9.0.0-0ubuntu1
- 10.0.0~b1~git2019121815.bc46b29f-0ubuntu1
- 10.0.0~b2~git2020020609.5b5576dd-0ubuntu1
- 10.0.0~b3~git2020032611.8a5d35ac-0ubuntu1
- 10.0.0~b3~git2020041013.a7da00d7-0ubuntu1
- 10.0.0-0ubuntu0.20.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:22.04:LTS
- Versions
- 13.0.0-0ubuntu1
- 13.0.0+git2021120910.b2d6de56-0ubuntu1
- 13.0.0+git2022030313.55bb2564-0ubuntu1
- 14.0.0-0ubuntu1
- 14.0.0-0ubuntu1.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:24.04:LTS
- Versions
- 17.0.0-0ubuntu1
- 18.0.0~rc1-0ubuntu1
- 18.0.1-0ubuntu1
- 18.0.1-0ubuntu1.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:26.10
- Versions
- 22.0.0-0ubuntu1
- 22.0.0-0ubuntu2
- 22.0.0+git20260814.61.b4aeb55-0ubuntu1
- 23.0.0~rc1-0ubuntu1
- 23.0.0-0ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:26.04:LTS
- Versions
- 21.0.0-0ubuntu1
- 21.0.0+git20260106.10.420677c8-0ubuntu1
- 22.0.0-0ubuntu1
- 22.0.0-0ubuntu1.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published