{"cve":"CVE-2020-8557","nvd":{"published":"2020-07-23T17:15:12.513","modified":"2026-06-17T03:26:32.780","status":"Modified","description":"The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral storage usage by a pod. If a pod writes a large amount of data to the /etc/hosts file, it could fill the storage space of the node and cause the node to fail.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-400"],"references":["https://github.com/kubernetes/kubernetes/issues/93032","https://groups.google.com/g/kubernetes-security-announce/c/cB_JUsYEKyY/m/vVSO61AhBwAJ","https://security.netapp.com/advisory/ntap-20200821-0002/","https://github.com/kubernetes/kubernetes/issues/93032","https://groups.google.com/g/kubernetes-security-announce/c/cB_JUsYEKyY/m/vVSO61AhBwAJ"],"products":["kubernetes:kubernetes"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-8557","score":0.00434,"percentile":0.37757,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-55qj-gj3x-jq9r","url":"https://osv.dev/vulnerability/GHSA-55qj-gj3x-jq9r","summary":"Denial of service in Kubernetes","modified":"2024-06-10T19:36:51Z","packages":[{"ecosystem":"Go","name":"k8s.io/kubernetes/pkg/kubelet","purl":"pkg:golang/k8s.io/kubernetes/pkg/kubelet","ranges":[">=1.1.0 <1.16.13"],"fixed":["1.16.13"]},{"ecosystem":"Go","name":"k8s.io/kubernetes/pkg/kubelet","purl":"pkg:golang/k8s.io/kubernetes/pkg/kubelet","ranges":[">=1.17.0 <1.17.9"],"fixed":["1.17.9"]},{"ecosystem":"Go","name":"k8s.io/kubernetes/pkg/kubelet","purl":"pkg:golang/k8s.io/kubernetes/pkg/kubelet","ranges":[">=1.18.0 <1.18.6"],"fixed":["1.18.6"]}]},{"id":"GO-2024-2753","url":"https://osv.dev/vulnerability/GO-2024-2753","summary":"Denial of service in Kubernetes in k8s.io/kubernetes","modified":"2026-03-03T04:51:50.697017Z","packages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.1.0 <1.16.13",">=1.17.0 <1.17.9",">=1.18.0 <1.18.6"],"fixed":["1.16.13","1.17.9","1.18.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}