CVE-2026-65834

Capsule is a multi-tenancy and policy-based framework for Kubernetes. Prior to 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex and CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex were not validated by the configuration admission webhook, allowing a Cluster Admin to store a malformed regex that later reached regexp.MustCompile in pkg/api/forbidden_list.go through internal/webhook/node/user_metadata.go and crashed the node admission webhook on Node create, update, or patch requests. This issue is fixed in version 0.13.8.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/projectcapsule/capsule/releases/tag/v0.13.8
https://github.com/projectcapsule/capsule/security/advisories/GHSA-68cj-mvg9-rgm2
https://github.com/projectcapsule/capsule/security/advisories/GHSA-68cj-mvg9-rgm2

Configurations

No configuration.

History

23 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Capsule es un framework multi-inquilino y basado en políticas para Kubernetes. Antes de la versión 0.13.8, CapsuleConfiguration.Spec.NodeMetadata.ForbiddenLabels.Regex y CapsuleConfiguration.Spec.NodeMetadata.ForbiddenAnnotations.Regex no eran validados por el webhook de admisión de configuración, permitiendo a un Administrador de Clúster almacenar una regex mal formada que luego llegaba a regexp.MustCompile en pkg/API/forbidden_list.go a través de internal/webhook/node/user_metadata.go y provocaba el fallo del webhook de admisión de nodos en las solicitudes de creación, actualización o parcheo de nodos. Este problema está solucionado en la versión 0.13.8.

Information

Published : 2026-07-30 20:18

Updated : 2026-10-23 22:10

NVD link : CVE-2026-65834

Mitre link : CVE-2026-65834

CVE.ORG link : CVE-2026-65834

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-248

Uncaught Exception

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