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OpenAdvisories
Critical · 9.9 CVE-2026-41283 EUVD-2026-34201GHSA-9hfw-w3f4-c4p8PYSEC-2026-3486

OpenStack Mistral allows Arbitrary Remote Code Execution when the API is exposed

Published Jun 4, 2026 · Updated Jul 15, 2026 · Assigned by mitre

Description

OpenStack Mistral through 22.0.0 allows Arbitrary Remote Code Execution when the API is exposed. There are endpoints that allow code execution, which can lead to exfiltration of service credentials.

Affected products

VendorProductAffectedFixed
OpenStack Mistral 20.0.0 – < 20.1.1, 21.0.0, 22.0.0 20.1.1

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 mistral 22.0.0-3 —
Debian 13 mistral 20.0.0-2+deb13u1 —
Debian 12 mistral 15.0.0-1+deb12u1 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 mistral No fix yet —
Ubuntu 26.04 LTS mistral 22.0.0-0ubuntu1.1 —
Ubuntu 25.10 mistral 21.0.0-0ubuntu1.1 —
Ubuntu 24.04 LTS mistral 18.0.1-0ubuntu1.1 —
Ubuntu 22.04 LTS mistral 14.0.0-0ubuntu1.1 —
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS mistral No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI mistral >= 20.0.0, < 20.1.1 20.1.1 GHSA-9hfw-w3f4-c4p8
PyPI mistral 21.0.0 — GHSA-9hfw-w3f4-c4p8
PyPI mistral 22.0.0 — GHSA-9hfw-w3f4-c4p8
PyPI mistral 21.0.0, 22.0.0 — PYSEC-2026-3486

References