CVE-2020-8561
4.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
Summary
A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Kubernetes | Kubernetes | 0 < * | affected |
Weaknesses
- CWE-441: CWE-441 Unintended Proxy or Intermediary
ADP Enrichment
CVE Program Container
Additional References
- https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY
- https://github.com/kubernetes/kubernetes/issues/104720
- https://security.netapp.com/advisory/ntap-20211014-0002/
References
- https://kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves/
- https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY
- https://github.com/kubernetes/kubernetes/issues/104720
- https://security.netapp.com/advisory/ntap-20211014-0002/
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