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CVE-2026-93858PATCHED
openstack · mistral

CVE-2026-93858: In OpenStack Mistral through 23.0.0, the std.ssh_proxied action passes a caller-supplied proxy_command value directly to

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.

Affected Products

VendorProductVersions
openstackmistral0, 21.0.0, 22.0.0, 23.0.0

References

  • https://launchpad.net/bugs/2162100(issue-tracking)
  • https://security.openstack.org/ossa/OSSA-2026-044.html

Related News (2 articles)

Tier C
oss-security13d ago
[OSSA-2026-044] OpenStack Mistral: Four authorization and privilege vulnerabilities in Mistral (CVE-2026-93858, CVE-2026-93860, CVE-2026-93861, CVE-2026-97147))
→ No new info (linked only)
Tier C
VulDB14d ago
CVE-2026-93858 | OpenStack Mistral up to 20.1.0/21.0.0/22.0.0/23.0.0 SSH Proxy std.ssh_proxied proxy_command os command injection
→ No new info (linked only)

Discussion (0)

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CISA KEV❌ No
Actively exploited❌ No
Patch available
20.1.121.0.122.0.1
CWECWE-78
PublishedOct 8, 2026
Last enriched14d ago
Trending Score9
Source articles2
Independent2
Info Completeness4/14
Missing: vendor, product, versions, cvss, epss, kev, exploit, patch, iocs, mitre_attack

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Related CVEs (5)

HIGHPRE-CVE
oslo.utils LUKS Inspector Logs Cryptographic Key Material
Trending: 27
MEDIUMCVE-2026-93856
CVE-2026-93856: In OpenStack Cinder through 29.0.0, cross-project information disclosure can occur in the Messages API. A non-admin user
Trending: 27
CRITICALCVE-2026-71195
CVE-2026-71195: In OpenStack Manila before 23.0.1, multiple Manila API operations on public shares do not verify that the caller owns th
Trending: 26
NONECVE-2026-97147
CVE-2026-97147: In OpenStack Mistral through 23.0.0, several of the v2 API write paths resolve the target object with a query that can r
Trending: 12
NONECVE-2026-93860
CVE-2026-93860: In OpenStack Mistral through 23.0.0, the /v2/maintenance API controller clears the request context and calls the mainten
Trending: 8

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Verification

State: verified
Confidence: 100%

Vulnerability Timeline

CVE Published
Oct 8, 2026
Discovered by ZDM
Oct 8, 2026
Patch Available
Oct 8, 2026