{"cve":"CVE-2020-8558","nvd":{"published":"2020-07-27T20:15:12.413","modified":"2026-06-17T03:26:32.990","status":"Modified","description":"The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node's network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-420"],"references":["https://github.com/kubernetes/kubernetes/issues/92315","https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ","https://security.netapp.com/advisory/ntap-20200821-0001/","https://github.com/kubernetes/kubernetes/issues/92315","https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ"],"products":["kubernetes:kubernetes"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-8558","score":0.03418,"percentile":0.88898,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wqv3-8cm6-h6wg","url":"https://osv.dev/vulnerability/GHSA-wqv3-8cm6-h6wg","summary":"Improper Authentication in Kubernetes","modified":"2026-09-10T03:49:12.295053037Z","packages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.18.0 <1.18.4"],"fixed":["1.18.4"]},{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.17.0 <1.17.7"],"fixed":["1.17.7"]},{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":["<1.16.11"],"fixed":["1.16.11"]}]},{"id":"GO-2022-0885","url":"https://osv.dev/vulnerability/GO-2022-0885","summary":"Improper Authentication in Kubernetes in k8s.io/kubernetes","modified":"2026-02-04T02:48:53.519131Z","packages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":["<1.16.11",">=1.17.0 <1.17.7",">=1.18.0 <1.18.4"],"fixed":["1.16.11","1.17.7","1.18.4"]}]}],"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."]}