OpenStack Mistral up to 20.1.0/21.0.0/22.0.0/23.0.0 Maintenance Service /v2/maintenance privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k2.80+

Summaryinfo

A vulnerability, which was classified as critical, has been found in OpenStack Mistral up to 20.1.0/21.0.0/22.0.0/23.0.0. This issue affects some unknown processing of the file /v2/maintenance of the component Maintenance Service. This manipulation causes privileges management. This vulnerability is tracked as CVE-2026-93860. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in OpenStack Mistral up to 20.1.0/21.0.0/22.0.0/23.0.0 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /v2/maintenance of the component Maintenance Service. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at launchpad.net. This vulnerability is known as CVE-2026-93860 since 09/18/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 20.1.1, 21.0.1 or 22.0.1 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Mistral 20.1.1/21.0.1/22.0.1

Timelineinfo

09/18/2026 CVE reserved
10/08/2026 +20 days Advisory disclosed
10/08/2026 +0 days VulDB entry created
10/08/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: openstack.org

Advisory: launchpad.net
Status: Confirmed

CVE: CVE-2026-93860 (🔒)
GCVE (CVE): GCVE-0-2026-93860
GCVE (VulDB): GCVE-100-415507

Entryinfo

Created: 10/08/2026 20:05
Changes: 10/08/2026 20:05 (68)
Complete: 🔍
Cache ID: 216::103

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