Ubuntu USN · USN-8422-1

Mistral vulnerability

Published: Thu, 11 Jun 2026 12:55

CVE-2026-41283

Summary

Mistral could be made to expose sensitive information or run code.

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.

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu jammy

mistral→14.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 14.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-api→14.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 14.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-api
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-common→14.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 14.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-common
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-engine→14.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 14.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-engine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-event-engine→14.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 14.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-event-engine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-executor→14.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 14.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-executor
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
python3-mistral→14.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 14.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y python3-mistral
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu noble

mistral→18.0.1-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 18.0.1-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-api→18.0.1-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 18.0.1-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-api
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-common→18.0.1-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 18.0.1-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-common
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-engine→18.0.1-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 18.0.1-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-engine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-event-engine→18.0.1-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 18.0.1-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-event-engine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-executor→18.0.1-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 18.0.1-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-executor
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
python3-mistral→18.0.1-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 18.0.1-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y python3-mistral
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu questing

mistral→21.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 21.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-api→21.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 21.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-api
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-common→21.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 21.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-common
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-engine→21.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 21.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-engine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-event-engine→21.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 21.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-event-engine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-executor→21.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 21.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-executor
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
python3-mistral→21.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 21.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y python3-mistral
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu resolute

mistral→22.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 22.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-api→22.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 22.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-api
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-common→22.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 22.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-common
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-engine→22.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 22.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-engine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-event-engine→22.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 22.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-event-engine
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mistral-executor→22.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 22.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mistral-executor
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
python3-mistral→22.0.0-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 22.0.0-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y python3-mistral
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

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