Read the docs
TI-2026-69629 Aliases CVE-2026-97147GHSA-73hv-3hwx-q492

OpenStack Mistral flaw lets users change other projects' resources

Priority HIGH 73CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

OpenStack Mistral through 23.0.0 has an incorrect authorization flaw (CWE-863) in several v2 API write paths, which resolve their target with a query that can return another project's resource. An authenticated project member can rewrite and un-publish other projects' public action definitions and environments. A project administrator can move another project's resource into their own project by creating a workbook whose embedded action or workflow name collides with it, causing the owner's later updates to fail with server errors.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

In OpenStack Mistral through 23.0.0, several of the v2 API write paths resolve the target object with a query that can return another project's resource, then write to it. An authenticated project member can use this to rewrite and un-publish another project's public action definitions and environments. A project administrator can create a workbook whose embedded ad-hoc action or workflow name collides with a resource of another project, which moves that resource into the caller's project and causes the original owner's subsequent updates of it to fail with server errors. Only deployments exposing the Mistral API are affected.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00345 28th percentileScored 2026-11-07
Fix Fixed Mistral (OpenStack): 20.1.1, 21.0.1, 22.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenStackMistralbefore 20.1.1; 21.0.0 to before 21.0.1; 22.0.0 to before 22.0.1; 23.0.020.1.1, 21.0.1, 22.0.1Patch availableCNA
  • Mistral VendorOpenStack Affected before 20.1.1; 21.0.0 to before 21.0.1; 22.0.0 to before 22.0.1; 23.0.0 Fixed in 20.1.1, 21.0.1, 22.0.1 Patch available CNA

Remediation

OpenStack Mistral is fixed in 20.1.1, 21.0.1 and 22.0.1. The sources list no fixed version for OpenStack Mistral 23.0.0.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Mistral (OpenStack) Fixed in 20.1.1, 21.0.1, 22.0.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    OpenStack Mistral 20.1.1, 21.0.1, 22.0.1

    4 records Highest priority Priority HIGH 2 HIGH, 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-69623 Command injection in OpenStack Mistral std.ssh_proxied actionPriority HIGH 73
    • TI-2026-69624 Missing authorization in OpenStack Mistral maintenance APIPriority MEDIUM 64
    • TI-2026-69625 Incorrect authorization in OpenStack Mistral exposes shared workflowsPriority LOW 26
    Show all 4 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 2 products
  • Red Hat OpenStack Platform 13 (Queens)
  • Red Hat OpenStack Platform 16.2

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-97147
  2. 2026-10-09 Alias added: GHSA-73hv-3hwx-q492
  3. 2026-10-09 Affected versions changed · Red Hat
  4. 2026-10-09 CVSS score added · Red Hat
  5. 2026-10-10 Affected versions changed · Red Hat
  6. 2026-10-10 Priority changed: MEDIUM → LOW
  7. 2026-10-14 CISA SSVC decision points changed
  8. 2026-10-14 Priority changed: LOW → HIGH

References

Other 2

  • TI-2026-78562 Incorrect authorization in OpenStack Manila share operations CVSS 3.1CRITICAL 9.9
  • TI-2026-63467 Code injection in OpenStack Octavia CVSS 4.0CRITICAL 9.4
  • TI-2017-13226 The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before… CVSS 3.1CRITICAL 9.8
  • TI-2026-69623 Command injection in OpenStack Mistral std.ssh_proxied action CVSS 4.0HIGH 8.7
  • TI-2022-17779 Improper privilege management in OpenStack CVSS 3.1HIGH 8.8
  • TI-2026-37300 Resource allocation without limits in OpenStack Ironic CVSS 3.1HIGH 7.5
See all 332 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences