Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenStack | Mistral | < 20.1.1, 21.0.0 – < 21.0.1, 22.0.0 – < 22.0.1, 23.0.0 | 20.1.1 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mistral | 23.0.0-2 | — |
| Debian 13 | mistral | No fix yet | — |
| Debian 12 | mistral | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mistral | No fix yet | — |
| Ubuntu 26.04 LTS | mistral | No fix yet | — |
| Ubuntu 24.04 LTS | mistral | No fix yet | — |
| Ubuntu 22.04 LTS | mistral | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | mistral | No fix yet | — |
| Ubuntu Pro 16.04 LTS | mistral | No fix yet | — |