GitHub Advisoryadvisory · Go

GHSA-vw47-mr44-3jf9 Confused Deputy in Kubernetes

LOW Published 2021-09-21 Modified 2026-06-09 Official page ↗

Aliases: CVE-2021-25740
Ecosystem: Go
Packages: k8s.io/kubernetes
Severity: Low
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses: CWE-441, CWE-610
Reviewed: 2021-09-21

Affected packages

• Go k8s.io/kubernetes: <= 1.22.2 (no fix yet)

Description

A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.

Alias · CVE (1)

CVE-2021-25740 A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have… vulnerability

Weakness · CWE (2)

CWE-441 Unintended Proxy or Intermediary weakness
CWE-610 Externally Controlled Reference to a Resource in Another Sphere weakness

References

https://nvd.nist.gov/vuln/detail/CVE-2021-25740 advisory
https://github.com/kubernetes/kubernetes/issues/103675 web
https://github.com/kubernetes/kubernetes package
https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE web
https://kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves web
https://security.netapp.com/advisory/ntap-20211014-0001 web