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TI-2026-67874 Aliases CVE-2026-71299GHSA-q53x-4qpm-q53m

Missing authentication in Maestro REST API write endpoints

Priority LOW 35CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Deferred Red Hat: fix deferred

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-306.

Summary

Red Hat Multicluster Engine for Kubernetes is affected by a flaw in Maestro, where the REST API write endpoints are registered without proper authentication middleware (CWE-306). A remote attacker without credentials can create, modify or delete consumers and resource bundles. This can cause data integrity problems or a denial of service.

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

Description from the CNA

A flaw was found in Maestro. Its REST API write endpoints were registered without proper authentication middleware. This allows a remote attacker to perform unauthorized write operations, such as creating, modifying, or deleting consumers and resource bundles. This could lead to data integrity issues or a denial of service (DoS).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00307 23rd percentileScored 2026-11-07
Fix Deferred Red Hat: fix deferred

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatMulticluster Engine for Kubernetes——No fix listedCNA
Red HatMulticluster Engine for Kubernetes——No fix listedCNA
  • Multicluster Engine for Kubernetes VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Multicluster Engine for Kubernetes VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:/a:redhat:multicluster_engine——Red Hat
  • cpe:/a:redhat:multicluster_engine Versions — — ·Red Hat

Remediation

The sources list no fixed version for Multicluster Engine for Kubernetes. Red Hat rates the flaw Moderate and lists its plan for Multicluster Engine for Kubernetes as none available.

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

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Multicluster Engine for KubernetesAffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-05 Threatist record created from CVE-2026-71299
  2. 2026-10-06 Alias added: GHSA-q53x-4qpm-q53m
  3. 2026-10-06 Affected versions changed · Red Hat
  4. 2026-10-06 CVSS score added · Red Hat
  5. 2026-10-07 Priority changed: MEDIUM → LOW
  6. 2026-10-07 CISA SSVC decision points changed

References

Other 2

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

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