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6.0 Medium

CVE-2026-93861 In OpenStack Mistral through 23.0.0, the workflow membership API lets a project that has accepted a share of another…

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.

Affected products and versions

Product Affected versions Fixed in
Mistral 23.0.0 No fix stated
Mistral 22.0 22.0.0 → < 22.0.1 22.0.1
Mistral 21.0 21.0.0 → < 21.0.1 21.0.1
Mistral 20.1 earliest → < 20.1.1 20.1.1

References

Timeline

  1. Published
  2. Last modified

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