Maestro: maestro: rest api write endpoints registered without authentication middleware
Summary
| CVE | CVE-2026-71299 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-05 20:17:25 UTC |
| Updated | 2026-10-07 21:17:16 UTC |
| 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). |
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
EPSS: 0.003070000 probability, percentile 0.215220000 (date 2026-10-07)
Problem Types: CWE-306 | CWE-306 Missing Authentication for Critical Function
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| 3.1 | CNA | CVSS | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Multicluster Engine For Kubernetes | Not specified | Not specified |
| CNA | Red Hat | Multicluster Engine For Kubernetes | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 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
| Source | Time | Event |
|---|---|---|
| CNA | 2026-08-05T00:00:00.000Z | Reported to Red Hat. |
| CNA | 2026-10-05T17:38:22.249Z | Made 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.