{"id":"CVE-2021-25740","aliases":["GHSA-vw47-mr44-3jf9"],"url":"https://o3.security/vulnerability/CVE-2021-25740","summary":"Confused Deputy in Kubernetes","details":"A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.","published":"2021-09-20T17:15:08.283Z","modified":"2026-03-14T01:43:52.452369Z","cvss":{"score":3.1,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},"epss":{"score":0.01952,"percentile":0.78451,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20211014-0001/"},{"type":"REPORT","url":"https://github.com/kubernetes/kubernetes/issues/103675"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-03-14T01:43:52.452369Z"}}