---
id: CVE-2026-93860
title: >-
  In OpenStack Mistral through 23.0.0, the /v2/maintenance API controller clears
  the request context and calls the maintenance service directly without any
  policy enforcement
summary: >-
  In OpenStack Mistral through 23.0.0, the /v2/maintenance API controller clears
  the request context and calls the maintenance service directly without any
  policy enforcement. Any holder of a valid Mistral token, regardless of
  assigned rol…
severity: high
cvss: 7.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-862
vendor: OpenStack
product: Mistral
affected:
  - Mistral < 20.1.1
  - Mistral >= 21.0.0 < 21.0.1
  - Mistral >= 22.0.0 < 22.0.1
  - Mistral 23.0.0
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T21:10:41.427'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93860'
references:
  - url: 'https://launchpad.net/bugs/2162789'
    label: cve@mitre.org
  - url: 'https://security.openstack.org/ossa/OSSA-2026-044.html'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-08T17:56:11.732Z'
---

## Overview

In OpenStack Mistral through 23.0.0, the /v2/maintenance API controller clears the request context and calls the maintenance service directly without any policy enforcement. Any holder of a valid Mistral token, regardless of assigned role, can read and change the service's cluster-wide maintenance state. Setting the state to PAUSED stops processing of new workflow and execution objects across all tenant projects until an operator restores it.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.