CVE-2026-2270 Affecting kubernetes package, versions <1.20.5+really1.20.2-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.43% (38th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-KUBERNETES-20079273
  • published24 Sept 2026
  • disclosed26 Oct 2026

Introduced: 24 Sep 2026

CVE-2026-2270  (opens in a new tab)

How to fix?

Upgrade Echo:latest kubernetes to version 1.20.5+really1.20.2-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubernetes package and not the kubernetes package as distributed by Echo. See How to fix? for Echo:latest 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