Insufficient Granularity of Access Control Affecting openshift-hyperkube package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.34% (28th percentile)

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  • Snyk IDSNYK-RHEL9-OPENSHIFTHYPERKUBE-20417494
  • published4 Oct 2026
  • disclosed15 Sept 2026

Introduced: 15 Sep 2026

CVE-2026-2270  (opens in a new tab)
CWE-1220  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 openshift-hyperkube.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift-hyperkube package and not the openshift-hyperkube package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1