{"id":"CVE-2025-9708","aliases":[],"url":"https://o3.security/vulnerability/CVE-2025-9708","summary":"Kubernetes C# client accepts certificates from any CA without properly verifying the trust chain","details":"A vulnerability exists in the Kubernetes C# client where the certificate validation logic accepts properly constructed certificates from any Certificate Authority (CA) without properly verifying the trust chain. This flaw allows a malicious actor to present a forged certificate and potentially intercept or manipulate communication with the Kubernetes API server, leading to possible man-in-the-middle attacks and API impersonation.","published":"2025-09-17T00:31:11Z","modified":"2026-09-10T03:50:29.850734646Z","cvss":{"score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"NuGet","name":"KubernetesClient","fixedVersion":"17.0.14"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-9708"},{"type":"WEB","url":"https://github.com/kubernetes/kubernetes/issues/134063"},{"type":"PACKAGE","url":"https://github.com/kubernetes-client/csharp"},{"type":"WEB","url":"https://groups.google.com/g/kubernetes-security-announce/c/rLopt2Msvbw/m/rK6XeNw2CgAJ"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/16/1"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T03:50:29.850734646Z"}}