CVE-2026-71299

Maestro: maestro: rest api write endpoints registered without authentication middleware

Published Oct 5, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
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).

Remediation

Vendor Workaround

To mitigate this issue, disable the OpenShift Route for the Maestro component if external authentication is not configured. This can be achieved by setting `route.enabled=false` in the Maestro Helm chart configuration. Alternatively, implement an external authentication layer, such as an Istio AuthorizationPolicy, NetworkPolicy, or oauth-proxy, to secure the exposed REST API endpoints. Disabling the route may impact functionality that relies on external access to Maestro's REST API.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Maestro
Maestro maestro
Redhat multicluster Engine For Kubernetes
Vendors & Products Maestro
Maestro maestro
Redhat multicluster Engine For Kubernetes
Type Values Removed Values Added
Description 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).
Title Maestro: maestro: rest api write endpoints registered without authentication middleware
First Time appeared Redhat
Redhat multicluster Engine
Weaknesses CWE-306
CPEs cpe:/a:redhat:multicluster_engine
Vendors & Products Redhat
Redhat multicluster Engine
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 7, 2026, 8:13 PM
Reserved
Aug 5, 2026, 2:50 PM
Status
Awaiting Analysis
Published
Oct 5, 2026, 8:17 PM
Modified
Oct 7, 2026, 9:17 PM
Severity
Moderate
Public date
Oct 5, 2026, 5:38 PM