Missing Authorization Affecting openstack-mistral-engine package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.26% (17th percentile)

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  • Snyk IDSNYK-RHEL8-OPENSTACKMISTRALENGINE-21012710
  • published16 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

NewCVE-2026-93861  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 openstack-mistral-engine.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openstack-mistral-engine package and not the openstack-mistral-engine package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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 Base Scores

version 3.1