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

Summary

CVECVE-2026-71299
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-05 20:17:25 UTC
Updated2026-10-05 20:17:25 UTC
DescriptionA 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).

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Problem Types: CWE-306 | CWE-306 Missing Authentication for Critical Function


VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1CNACVSS6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Multicluster Engine For Kubernetes Not specified Not specified
CNA Red Hat Multicluster Engine For Kubernetes Not specified Not specified

References

ReferenceSourceLinkTags
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
access.redhat.com/security/cve/CVE-2026-71299 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2026-08-05T00:00:00.000ZReported to Red Hat.
CNA2026-10-05T17:38:22.249ZMade public.

Workarounds

CNA: 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.

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