Unintended Proxy or Intermediary ('Confused Deputy') Affecting k8s.io/kubernetes/pkg/controller/statefulset package, versions >=1.34.0 <1.34.12>=1.35.0-alpha.0 <1.35.9>=1.36.0-alpha.0 <1.36.5>=1.37.0-alpha.0 <1.37.1>=1.38.0-alpha.0 <1.38.0-alpha.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-K8SIOKUBERNETESPKGCONTROLLERSTATEFULSET-22283251
- published8 Nov 2026
- disclosed27 Oct 2026
- creditImanOracle
Introduced: 27 Oct 2026
NewCVE-2026-2270 (opens in a new tab)How to fix?
Upgrade k8s.io/kubernetes/pkg/controller/statefulset to version 1.34.12, 1.35.9, 1.36.5, 1.37.1, 1.38.0-alpha.1 or higher.
Overview
Affected versions of this package are vulnerable to Unintended Proxy or Intermediary ('Confused Deputy') via the ApplyRevision function in the StatefulSet controller. An attacker with namespace-scoped write permissions on StatefulSet and ControllerRevision objects can supply crafted revision data that changes the restored StatefulSet’s namespace and metadata, causing the controller to create a cross-namespace pod whose metadata and specification the attacker controls. The garbage collector immediately deletes the pod unless the attacker can construct a valid StatefulSet OwnerReference using the UID of an existing StatefulSet in the victim namespace.