CVE-2026-93861: OpenStack Mistral vulnerability
OpenStack · Mistral
Vendor fix available · Affected: OpenStack Mistral · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 17% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- OpenStack · Mistralbefore 20.1.1; from 21.0.0 before 21.0.1; from 22.0.0 before 22.0.1; 23.0.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- OpenStack
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-93861 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.