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Ubuntu Mistral Important Code Execution Threat USN-8422-1

ubuntu
Calendar Grey June 11, 2026
Dist Ubuntu Esm H88
Mistral in Ubuntu exposes sensitive information and allows code execution risks. Ensure proper update for protection.
Mistral could be made to expose sensitive information or run code.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Mistral could be made to expose sensitive information or run code. Software Description: - mistral: OpenStack Workflow Service Details: Eduardo Gonzalez Gutierrez and Arnaud Morin discovered that Mistral did not properly enforce access policies on some API endpoints. An attacker could possibly execute arbitrary code on a Mistral worker and possibly extract sensitive data including service credentials from it.

Topics%20covered

Topics Covered

security advisory code execution Ubuntu important sensitive exposure mistral

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS mistral-api 22.0.0-0ubuntu1.1 mistral-common 22.0.0-0ubuntu1.1 mistral-engine 22.0.0-0ubuntu1.1 mistral-event-engine 22.0.0-0ubuntu1.1 mistral-executor 22.0.0-0ubuntu1.1 python3-mistral 22.0.0-0ubuntu1.1 Ubuntu 25.10 mistral-api 21.0.0-0ubuntu1.1 mistral-common 21.0.0-0ubuntu1.1 mistral-engine 21.0.0-0ubuntu1.1 mistral-event-engine 21.0.0-0ubuntu1.1 mistral-executor 21.0.0-0ubuntu1.1 python3-mistral 21.0.0-0ubuntu1.1 Ubuntu 24.04 LTS mistral-api 18.0.1-0ubuntu1.1 mistral-common 18.0.1-0ubuntu1.1 mistral-engine 18.0.1-0ubuntu1.1 mistral-event-engine 18.0.1-0ubuntu1.1 mistral-executor 18.0.1-0ubuntu1.1 python3-mistral 18.0.1-0ubuntu1.1 Ubuntu 22.04 LTS mistral-api 14.0.0-0ubuntu1.1 mistral-common 14.0.0-0ubuntu1.1 mistral-engine 14.0.0-0ubuntu1.1 mistral-event-engine 14.0.0-0ubuntu1.1 mistral-executor 14.0.0-0ubuntu1.1 python3-mistral 14.0.0-0ubuntu1.1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-8422-1

CVE-2026-41283

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8422-1

Topics%20covered

Topics Covered

security advisory code execution Ubuntu important sensitive exposure mistral

Package Information

https://launchpad.net/ubuntu/+source/mistral/22.0.0-0ubuntu1.1 https://launchpad.net/ubuntu/+source/mistral/21.0.0-0ubuntu1.1 https://launchpad.net/ubuntu/+source/mistral/18.0.1-0ubuntu1.1 https://launchpad.net/ubuntu/+source/mistral/14.0.0-0ubuntu1.1

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