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CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-2270

StatefulSet and ControllerRevision write permissions allow cross-namespace pod creation

Description

A confused deputy attack exists in the StatefulSet controller that allows a user with namespace-scoped write permissions on StatefulSet and ControllerRevision objects to create a cross-namespace pod. An attacker exploiting this vulnerability would have full control over the resulting pod’s metadata and specification, including namespace selection. Note that the cross-namespace pod will be immediately deleted by the garbage collector unless the attacker is able to construct a valid StatefulSet OwnerReference. This would require referencing the UID of an existing StatefulSet in the victim’s namespace.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Kubernetes Kubernetes

Default version status: unaffected

  • v1.34.0 to ≤ v1.34.11affected
  • v1.35.0 to ≤ v1.35.8affected
  • v1.36.0 to ≤ v1.36.4affected
  • v1.37.0 to ≤ v1.37.0affected

References