CVE-2026-93860

Summary

CVECVE-2026-93860
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-08 18:18:30 UTC
Updated2026-10-09 12:17:13 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v4.0 7.1 HIGH from [email protected]

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.003430000 probability, percentile 0.258200000 (date 2026-10-10)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization


VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS7.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenStack Mistral affected 20.1.1 semver Not specified
CNA OpenStack Mistral affected 21.0.0 21.0.1 semver Not specified
CNA OpenStack Mistral affected 22.0.0 22.0.1 semver Not specified
CNA OpenStack Mistral affected 23.0.0 semver Not specified

References

ReferenceSourceLinkTags
bugs.launchpad.net/ossa/+bug/2162789 134c704f-9b21-4f2e-91b3-4a467353bcc0 bugs.launchpad.net
security.openstack.org/ossa/OSSA-2026-044.html [email protected] security.openstack.org
launchpad.net/bugs/2162789 [email protected] launchpad.net
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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