CVE-2026-67567

A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a tenant, who has the ability to create HelmRelease custom resources (CRs), to bypass existing security controls. The system's HelmRelease controller processes Helm chart templates using its own elevated ServiceAccount privileges without proper validation. This enables the tenant to deploy arbitrary resources across the entire cluster, leading to a significant security compromise.

CVSS v3 9.9 CRITICAL

9.9^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.1 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:60386
https://access.redhat.com/errata/RHSA-2026:60387
https://access.redhat.com/errata/RHSA-2026:60388
https://access.redhat.com/errata/RHSA-2026:60389
https://access.redhat.com/errata/RHSA-2026:60390
https://access.redhat.com/errata/RHSA-2026:60391
https://access.redhat.com/security/cve/CVE-2026-67567
https://bugzilla.redhat.com/show_bug.cgi?id=2514224

Configurations

No configuration.

History

26 Oct 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) Se encontró una falla en el componente multicloud-operators-subscription. Esta vulnerabilidad permite a un inquilino, que tiene la capacidad de crear recursos personalizados de HelmRelease (CRs), eludir los controles de seguridad existentes. El controlador de HelmRelease del sistema procesa plantillas de gráficos de Helm utilizando sus propios privilegios elevados de ServiceAccount sin la validación adecuada. Esto permite al inquilino desplegar recursos arbitrarios en todo el clúster, lo que lleva a un compromiso de seguridad significativo.

Information

Published : 2026-08-20 21:17

Updated : 2026-10-26 10:10

NVD link : CVE-2026-67567

Mitre link : CVE-2026-67567

CVE.ORG link : CVE-2026-67567

JSON object : View

Products Affected

No product.

CWE

CWE-441

Unintended Proxy or Intermediary ('Confused Deputy')

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This vulnerability allows a tenant, who has the ability to create HelmRelease custom resources (CRs), to bypass existing security controls. The system's HelmRelease controller processes Helm chart templates using its own elevated ServiceAccount privileges without proper validation. This enables the tenant to deploy arbitrary resources across the entire cluster, leading to a significant security compromise."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en el componente multicloud-operators-subscription. Esta vulnerabilidad permite a un inquilino, que tiene la capacidad de crear recursos personalizados de HelmRelease (CRs), eludir los controles de seguridad existentes. El controlador de HelmRelease del sistema procesa plantillas de gr\u00e1ficos de Helm utilizando sus propios privilegios elevados de ServiceAccount sin la validaci\u00f3n adecuada. Esto permite al inquilino desplegar recursos arbitrarios en todo el cl\u00faster, lo que lleva a un compromiso de seguridad significativo."}], "lastModified": "2026-10-26T10:10:00.140", "sourceIdentifier": "secalert@redhat.com"}