CVE-2026-93861
CVE-2026-93861
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.0 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
mistral
- Versions
- ≥ 0, < 20.1.1: Affected (semver)
- ≥ 21.0.0, < 21.0.1: Affected (semver)
- ≥ 22.0.0, < 22.0.1: Affected (semver)
- 23.0.0: Affected (semver)
Update to 20.1.1; Update to 21.0.1; Update to 22.0.1
mistral Debian:12
- Versions
- 15.0.0-1
- 15.0.0-1+deb12u1
- 16.0.0-1
- 16.0.0-2
- 16.0.0-3
- 16.0.0-4
- 16.0.0~rc1-1
- 17.0.0-1
- 17.0.0-2
- 17.0.0-3
- 17.0.0~rc1-1
- 18.0.0~rc1-1
- 18.0.1-1
- 19.0.0-1
- 19.0.0-2
- 19.0.0~rc1-1
- 19.0.0~rc1-2
- 20.0.0-1
- 20.0.0-2
- 20.0.0~rc1-1
- 20.0.0~rc1-2
- 21.0.0-1
- 21.0.0-2
- 21.0.0-4
- 21.0.0-5
- 21.0.0-6
- 21.0.0~rc1-1
- 21.0.0~rc1-2
- 22.0.0-1
- 22.0.0-3
- 22.0.0~rc1-1
- 22.0.0~rc1-2
- 22.0.0~rc1-3
- 23.0.0-1
- 23.0.0-2
- 23.0.0-3
- 23.0.0~rc1-1
- 23.0.0~rc1-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Debian:13
- Versions
- 20.0.0-2
- 20.0.0-2+deb13u1
- 21.0.0-1
- 21.0.0-2
- 21.0.0-4
- 21.0.0-5
- 21.0.0-6
- 21.0.0~rc1-1
- 21.0.0~rc1-2
- 22.0.0-1
- 22.0.0-3
- 22.0.0~rc1-1
- 22.0.0~rc1-2
- 22.0.0~rc1-3
- 23.0.0-1
- 23.0.0-2
- 23.0.0-3
- 23.0.0~rc1-1
- 23.0.0~rc1-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Debian:14
- Versions
- 20.0.0-2
- 21.0.0-1
- 21.0.0-2
- 21.0.0-4
- 21.0.0-5
- 21.0.0-6
- 21.0.0~rc1-1
- 21.0.0~rc1-2
- 22.0.0-1
- 22.0.0-3
- 22.0.0~rc1-1
- 22.0.0~rc1-2
- 22.0.0~rc1-3
- 23.0.0-1
- 23.0.0~rc1-1
- 23.0.0~rc1-2
- Affected ranges
- ECOSYSTEM: < 23.0.0-2
Update to 23.0.0-2
mistral Ubuntu:Pro:16.04:LTS
- Versions
- 1.0.0-1
- 1.0.0-4
- 2.0.0~b3-3
- 2.0.0~rc1-1
- 2.0.0~rc2-1
- 2.0.0-1
- 2.0.0-1ubuntu2
- 2.0.0-1ubuntu2+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:Pro:18.04:LTS
- Versions
- 5.0.0-0ubuntu1
- 6.0.0~b1-0ubuntu1
- 6.0.0~b1-0ubuntu2
- 6.0.0~b2-0ubuntu1
- 6.0.0~rc1-0ubuntu1
- 6.0.0-0ubuntu1
- 6.0.0-0ubuntu1.1
- 6.0.0-0ubuntu1.1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:20.04:LTS
- Versions
- 9.0.0-0ubuntu1
- 10.0.0~b1~git2019121815.bc46b29f-0ubuntu1
- 10.0.0~b2~git2020020609.5b5576dd-0ubuntu1
- 10.0.0~b3~git2020032611.8a5d35ac-0ubuntu1
- 10.0.0~b3~git2020041013.a7da00d7-0ubuntu1
- 10.0.0-0ubuntu0.20.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:22.04:LTS
- Versions
- 13.0.0-0ubuntu1
- 13.0.0+git2021120910.b2d6de56-0ubuntu1
- 13.0.0+git2022030313.55bb2564-0ubuntu1
- 14.0.0-0ubuntu1
- 14.0.0-0ubuntu1.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:24.04:LTS
- Versions
- 17.0.0-0ubuntu1
- 18.0.0~rc1-0ubuntu1
- 18.0.1-0ubuntu1
- 18.0.1-0ubuntu1.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:26.10
- Versions
- 22.0.0-0ubuntu1
- 22.0.0-0ubuntu2
- 22.0.0+git20260814.61.b4aeb55-0ubuntu1
- 23.0.0~rc1-0ubuntu1
- 23.0.0-0ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mistral Ubuntu:26.04:LTS
- Versions
- 21.0.0-0ubuntu1
- 21.0.0+git20260106.10.420677c8-0ubuntu1
- 22.0.0-0ubuntu1
- 22.0.0-0ubuntu1.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published