CVE-2026-65834
Description
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.
How to fix
- github.com/projectcapsule/capsule0.13.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/projectcapsule/capsuleGo | v < 0.13.8 | 0.13.8 |
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