CVE-2026-93861
Last modified
CVE-2026-93861 is a medium-severity vulnerability rated 6/10 on the CVSS scale. In OpenStack Mistral through 23.0.0, the workflow membership API lets a project that has accepted a share of another project's private workflow create a further membership naming a third project. The new membership row is created with its project_id defaulted to the accepting project rather than the original workflow owner, and thus the owner can neither see nor delete it. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
In OpenStack Mistral through 23.0.0, the workflow membership API lets a project that has accepted a share of another project's private workflow create a further membership naming a third project. The new membership row is created with its project_id defaulted to the accepting project rather than the original workflow owner, and thus the owner can neither see nor delete it. The third project can accept this membership (that it had not actually been granted by the owner), and then read and execute the owner's private workflow; only the accepting (not the owning) project can later revoke that access.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| OpenStack | Mistral | < 20.1.1; >= 21.0.0, < 21.0.1; >= 22.0.0, < 22.0.1; 23.0.0 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
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