OpenStack Mistral v2 API Write Path Escalation <23.0.0 (CVE-2026-97147)
CVE-2026-97147 Published on October 8, 2026
In OpenStack Mistral through 23.0.0, several of the v2 API write paths resolve the target object with a query that can return another project's resource, then write to it. An authenticated project member can use this to rewrite and un-publish another project's public action definitions and environments. A project administrator can create a workbook whose embedded ad-hoc action or workflow name collides with a resource of another project, which moves that resource into the caller's project and causes the original owner's subsequent updates of it to fail with server errors. Only deployments exposing the Mistral API are affected.
Vulnerability Analysis
CVE-2026-97147 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-97147 has been classified to as an AuthZ vulnerability or weakness.
Affected Versions
OpenStack Mistral:- Before 20.1.1 is affected.
- Version 21.0.0 and below 21.0.1 is affected.
- Version 22.0.0 and below 22.0.1 is affected.
- Version 23.0.0 is affected.