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TI-2026-69623 Aliases CVE-2026-93858GHSA-gxqc-3r52-88h8

Command injection in OpenStack Mistral std.ssh_proxied action

Priority HIGH 73CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-78.

Summary

OpenStack Mistral versions before 20.1.1, from 21.0.0 before 21.0.1, from 22.0.0 before 22.0.1, and 23.0.0 and later are affected. The std.ssh_proxied action passes a caller-supplied proxy_command to paramiko.ProxyCommand() before connecting, an OS command injection flaw (CWE-78). An authenticated project member can run an arbitrary local command this way, even if the SSH connection fails.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00429 37th percentileScored 2026-11-07
Fix Partial Mistral (OpenStack): 20.1.1, 21.0.1, 22.0.1Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenStackMistralbefore 20.1.1; 21.0.0 to before 21.0.1; 22.0.0 to before 22.0.1; 23.0.020.1.1, 21.0.1, 22.0.1Patch availableCNA
  • Mistral VendorOpenStack Affected before 20.1.1; 21.0.0 to before 21.0.1; 22.0.0 to before 22.0.1; 23.0.0 Fixed in 20.1.1, 21.0.1, 22.0.1 Patch available CNA

Remediation

Fixed versions are 20.1.1, 21.0.1 and 22.0.1. The sources list no fixed version for Red Hat OpenStack Platform 13 (Queens) or Red Hat OpenStack Platform 16.2.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Mistral (OpenStack) Fixed in 20.1.1, 21.0.1, 22.0.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    OpenStack Mistral 20.1.1, 21.0.1, 22.0.1

    4 records Highest priority Priority HIGH 2 HIGH, 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-69629 OpenStack Mistral flaw lets users change other projects' resourcesPriority HIGH 73
    • TI-2026-69624 Missing authorization in OpenStack Mistral maintenance APIPriority MEDIUM 64
    • TI-2026-69625 Incorrect authorization in OpenStack Mistral exposes shared workflowsPriority LOW 26
    Show all 4 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenStack Platform 13 (Queens)AffectedNo fix planned: Out of support scope
Red Hat OpenStack Platform 16.2AffectedNo fix yet

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-93858
  2. 2026-10-09 Alias added: GHSA-gxqc-3r52-88h8
  3. 2026-10-09 Affected versions changed · Red Hat
  4. 2026-10-09 CVSS score added · Red Hat
  5. 2026-10-10 Affected versions changed · Red Hat

References

Other 2

  • TI-2026-78562 Incorrect authorization in OpenStack Manila share operations CVSS 3.1CRITICAL 9.9
  • TI-2026-63467 Code injection in OpenStack Octavia CVSS 4.0CRITICAL 9.4
  • TI-2017-13226 The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before… CVSS 3.1CRITICAL 9.8
  • TI-2026-69629 OpenStack Mistral flaw lets users change other projects' resources CVSS 4.0HIGH 7.2
  • TI-2022-17779 Improper privilege management in OpenStack CVSS 3.1HIGH 8.8
  • TI-2026-37300 Resource allocation without limits in OpenStack Ironic CVSS 3.1HIGH 7.5
See all 332 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences