{"cve":"CVE-2020-8555","nvd":{"published":"2020-06-05T17:15:11.640","modified":"2026-06-17T03:26:32.593","status":"Modified","description":"The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","score":6.3},"cwes":["CWE-918"],"references":["http://www.openwall.com/lists/oss-security/2020/06/01/4","http://www.openwall.com/lists/oss-security/2021/05/04/8","https://github.com/kubernetes/kubernetes/issues/91542","https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/"],"products":["fedoraproject:fedora","kubernetes:kubernetes"],"source":"nvd","synced_at":"2026-10-19T21:05:42.039641217+00:00"},"epss":{"cve":"CVE-2020-8555","score":0.03679,"percentile":0.89675,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x6mj-w4jf-jmgw","url":"https://osv.dev/vulnerability/GHSA-x6mj-w4jf-jmgw","summary":"Server Side Request Forgery (SSRF) in Kubernetes","modified":"2026-09-10T03:49:12.301966749Z","packages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.18.0 <1.18.1"],"fixed":["1.18.1"]},{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.17.0 <1.17.4"],"fixed":["1.17.4"]},{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.16.0 <1.16.9"],"fixed":["1.16.9"]},{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":["<1.15.12"],"fixed":["1.15.12"]}]},{"id":"GO-2022-0890","url":"https://osv.dev/vulnerability/GO-2022-0890","summary":"Server Side Request Forgery (SSRF) in Kubernetes in k8s.io/kubernetes","modified":"2026-02-04T03:55:26.305499Z","packages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":["<1.15.12",">=1.16.0 <1.16.9",">=1.17.0 <1.17.4",">=1.18.0 <1.18.1"],"fixed":["1.15.12","1.16.9","1.17.4","1.18.1"]}]}],"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."]}