Medium severity6.3NVD Advisory· Published Jan 21, 2021· Updated Jun 1, 2026
CVE-2020-8554
CVE-2020-8554
Description
Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
k8s.io/kubernetesGo | <= 1.22.0 | — |
Affected products
150cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
- (no CPE)range: Kubernetes all versions
- cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.15.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.14.0:*:*:*:*:*:*:*
- osv-coords145 versionspkg:apk/chainguard/kubeadm-1.28pkg:apk/chainguard/kubeadm-1.28-defaultpkg:apk/chainguard/kubeadm-1.29pkg:apk/chainguard/kubeadm-1.29-defaultpkg:apk/chainguard/kubeadm-1.30pkg:apk/chainguard/kubeadm-1.30-defaultpkg:apk/chainguard/kubeadm-1.31pkg:apk/chainguard/kubeadm-1.31-defaultpkg:apk/chainguard/kube-apiserver-1.28pkg:apk/chainguard/kube-apiserver-1.28-defaultpkg:apk/chainguard/kube-apiserver-1.29pkg:apk/chainguard/kube-apiserver-1.29-defaultpkg:apk/chainguard/kube-apiserver-1.30pkg:apk/chainguard/kube-apiserver-1.30-defaultpkg:apk/chainguard/kube-apiserver-1.31pkg:apk/chainguard/kube-apiserver-1.31-defaultpkg:apk/chainguard/kube-controller-manager-1.28pkg:apk/chainguard/kube-controller-manager-1.28-defaultpkg:apk/chainguard/kube-controller-manager-1.29pkg:apk/chainguard/kube-controller-manager-1.29-defaultpkg:apk/chainguard/kube-controller-manager-1.30pkg:apk/chainguard/kube-controller-manager-1.30-defaultpkg:apk/chainguard/kube-controller-manager-1.31pkg:apk/chainguard/kube-controller-manager-1.31-defaultpkg:apk/chainguard/kubectl-1.28pkg:apk/chainguard/kubectl-1.28-defaultpkg:apk/chainguard/kubectl-1.29pkg:apk/chainguard/kubectl-1.29-bitnami-compatpkg:apk/chainguard/kubectl-1.29-defaultpkg:apk/chainguard/kubectl-1.30pkg:apk/chainguard/kubectl-1.30-bitnami-compatpkg:apk/chainguard/kubectl-1.30-defaultpkg:apk/chainguard/kubectl-1.31pkg:apk/chainguard/kubectl-1.31-bitnami-compatpkg:apk/chainguard/kubectl-1.31-defaultpkg:apk/chainguard/kubectl-bash-completion-1.28pkg:apk/chainguard/kubectl-bash-completion-1.29pkg:apk/chainguard/kubectl-bash-completion-1.30pkg:apk/chainguard/kubectl-bash-completion-1.31pkg:apk/chainguard/kubeflow-pipelinespkg:apk/chainguard/kubeflow-pipelines-apiserverpkg:apk/chainguard/kubeflow-pipelines-cache-deployerpkg:apk/chainguard/kubeflow-pipelines-cache-deployer-compatpkg:apk/chainguard/kubeflow-pipelines-cache_serverpkg:apk/chainguard/kubeflow-pipelines-frontendpkg:apk/chainguard/kubeflow-pipelines-metadata-envoy-configpkg:apk/chainguard/kubeflow-pipelines-metadata-writerpkg:apk/chainguard/kubeflow-pipelines-metadata-writer-compatpkg:apk/chainguard/kubeflow-pipelines-persistence_agentpkg:apk/chainguard/kubeflow-pipelines-scheduledworkflowpkg:apk/chainguard/kubeflow-pipelines-viewer-crd-controllerpkg:apk/chainguard/kubelet-1.28pkg:apk/chainguard/kubelet-1.28-defaultpkg:apk/chainguard/kubelet-1.29pkg:apk/chainguard/kubelet-1.29-defaultpkg:apk/chainguard/kubelet-1.30pkg:apk/chainguard/kubelet-1.30-defaultpkg:apk/chainguard/kubelet-1.31pkg:apk/chainguard/kubelet-1.31-defaultpkg:apk/chainguard/kube-proxy-1.28pkg:apk/chainguard/kube-proxy-1.28-defaultpkg:apk/chainguard/kube-proxy-1.29pkg:apk/chainguard/kube-proxy-1.29-defaultpkg:apk/chainguard/kube-proxy-1.29-default-compatpkg:apk/chainguard/kube-proxy-1.30pkg:apk/chainguard/kube-proxy-1.30-defaultpkg:apk/chainguard/kube-proxy-1.30-default-compatpkg:apk/chainguard/kube-proxy-1.31pkg:apk/chainguard/kube-proxy-1.31-defaultpkg:apk/chainguard/kube-proxy-1.31-default-compatpkg:apk/chainguard/kubernetes-1.21pkg:apk/chainguard/kubernetes-1.22pkg:apk/chainguard/kubernetes-1.23pkg:apk/chainguard/kubernetes-1.24pkg:apk/chainguard/kubernetes-1.26pkg:apk/chainguard/kubernetes-1.27pkg:apk/chainguard/kubernetes-1.28pkg:apk/chainguard/kubernetes-1.28-defaultpkg:apk/chainguard/kubernetes-1.29pkg:apk/chainguard/kubernetes-1.29-defaultpkg:apk/chainguard/kubernetes-1.30pkg:apk/chainguard/kubernetes-1.30-defaultpkg:apk/chainguard/kubernetes-1.31pkg:apk/chainguard/kubernetes-1.31-defaultpkg:apk/chainguard/kubernetes-1.32pkg:apk/chainguard/kubernetes-dns-node-cache-1.17pkg:apk/chainguard/kubernetes-pause-1.29pkg:apk/chainguard/kubernetes-pause-1.30pkg:apk/chainguard/kubernetes-pause-1.31pkg:apk/chainguard/kubernetes-pause-compat-1.29pkg:apk/chainguard/kubernetes-pause-compat-1.30pkg:apk/chainguard/kubernetes-pause-compat-1.31pkg:apk/chainguard/kube-scheduler-1.28pkg:apk/chainguard/kube-scheduler-1.28-defaultpkg:apk/chainguard/kube-scheduler-1.29pkg:apk/chainguard/kube-scheduler-1.29-defaultpkg:apk/chainguard/kube-scheduler-1.30pkg:apk/chainguard/kube-scheduler-1.30-defaultpkg:apk/chainguard/kube-scheduler-1.31pkg:apk/chainguard/kube-scheduler-1.31-defaultpkg:apk/chainguard/nodetaintpkg:apk/chainguard/sparkctlpkg:apk/chainguard/spark-operatorpkg:apk/chainguard/spark-operator-oci-entrypointpkg:apk/wolfi/kubeadm-1.28pkg:apk/wolfi/kubeadm-1.28-defaultpkg:apk/wolfi/kube-apiserver-1.28pkg:apk/wolfi/kube-apiserver-1.28-defaultpkg:apk/wolfi/kube-controller-manager-1.28pkg:apk/wolfi/kube-controller-manager-1.28-defaultpkg:apk/wolfi/kubectl-1.28pkg:apk/wolfi/kubectl-1.28-defaultpkg:apk/wolfi/kubectl-bash-completion-1.28pkg:apk/wolfi/kubeflow-pipelinespkg:apk/wolfi/kubeflow-pipelines-apiserverpkg:apk/wolfi/kubeflow-pipelines-cache-deployerpkg:apk/wolfi/kubeflow-pipelines-cache-deployer-compatpkg:apk/wolfi/kubeflow-pipelines-cache_serverpkg:apk/wolfi/kubeflow-pipelines-frontendpkg:apk/wolfi/kubeflow-pipelines-metadata-envoy-configpkg:apk/wolfi/kubeflow-pipelines-metadata-writerpkg:apk/wolfi/kubeflow-pipelines-metadata-writer-compatpkg:apk/wolfi/kubeflow-pipelines-persistence_agentpkg:apk/wolfi/kubeflow-pipelines-scheduledworkflowpkg:apk/wolfi/kubeflow-pipelines-viewer-crd-controllerpkg:apk/wolfi/kubelet-1.28pkg:apk/wolfi/kubelet-1.28-defaultpkg:apk/wolfi/kube-proxy-1.28pkg:apk/wolfi/kube-proxy-1.28-defaultpkg:apk/wolfi/kubernetes-1.24pkg:apk/wolfi/kubernetes-1.26pkg:apk/wolfi/kubernetes-1.27pkg:apk/wolfi/kubernetes-1.28pkg:apk/wolfi/kubernetes-1.28-defaultpkg:apk/wolfi/kubernetes-1.29pkg:apk/wolfi/kubernetes-1.30pkg:apk/wolfi/kubernetes-1.31pkg:apk/wolfi/kubernetes-1.32pkg:apk/wolfi/kube-scheduler-1.28pkg:apk/wolfi/kube-scheduler-1.28-defaultpkg:apk/wolfi/nodetaintpkg:apk/wolfi/sparkctlpkg:apk/wolfi/spark-operatorpkg:apk/wolfi/spark-operator-oci-entrypointpkg:golang/k8s.io/kubernetes
< 0+ 144 more
- (no CPE)range: < 0
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- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: <= 1.22.0
Patches
Vulnerability mechanics
References
18- www.oracle.com//security-alerts/cpujul2021.htmlnvdPatchThird Party AdvisoryWEB
- www.oracle.com/security-alerts/cpuapr2022.htmlnvdPatchThird Party AdvisoryWEB
- www.oracle.com/security-alerts/cpujan2022.htmlnvdPatchThird Party AdvisoryWEB
- github.com/kubernetes/kubernetes/issues/97076nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-j9wf-vvm6-4r9wghsaADVISORY
- groups.google.com/g/kubernetes-security-announce/c/iZWsF9nbKE8nvdMailing ListThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2020-8554ghsaADVISORY
- github.com/kubernetes/kubernetes/issues/97110ghsaWEB
- kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cvesghsaWEB
- lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e828fd40%40%3Ccommits.druid.apache.org%3EnvdWEB
- lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e828fd40@%3Ccommits.druid.apache.org%3EghsaWEB
- lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d1c44942%40%3Ccommits.druid.apache.org%3EnvdWEB
- lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d1c44942@%3Ccommits.druid.apache.org%3EghsaWEB
- lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef822b3bb3%40%3Ccommits.druid.apache.org%3EnvdWEB
- lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef822b3bb3@%3Ccommits.druid.apache.org%3EghsaWEB
- lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f49767b6%40%3Ccommits.druid.apache.org%3EnvdWEB
- lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f49767b6@%3Ccommits.druid.apache.org%3EghsaWEB
- kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves/nvd
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