CVE-2026-93860

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.

CVSS 4.0

7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-10-08

Modified

2026-10-09

Record from

the NVD, synced 2026-10-19

References

• https://launchpad.net/bugs/2162789
• https://security.openstack.org/ossa/OSSA-2026-044.html
• https://bugs.launchpad.net/ossa/+bug/2162789

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