Remote Code Execution Vulnerability in OpenStack Mistral API
CVE-2026-41283

9.9CRITICAL

Key Information:

Vendor

Openstack
Status
Mistral
Vendor
CVE Published:
4 June 2026

What is CVE-2026-41283?

The vulnerability in OpenStack Mistral allows for arbitrary remote code execution when exposed via its API. Attackers can exploit certain endpoints that permit code execution, resulting in the potential exfiltration of sensitive service credentials. Proper measures should be implemented to secure the API endpoints to mitigate this risk.

Affected Version(s)

Mistral 20.0.0 < 20.1.1

Mistral 21.0.0

Mistral 22.0.0

References

https://github.com/openstack/mistral/tags
https://www.openwall.com/lists/oss-security/2026/06/03/14
https://security.openstack.org/ossa/OSSA-2026-020.html

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.