{"id":"CVE-2021-25741","aliases":["GHSA-f5f7-6478-qm6p","GO-2022-0910"],"url":"https://o3.security/vulnerability/CVE-2021-25741","summary":"Files or Directories Accessible to External Parties in kubernetes","details":"A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.","published":"2021-09-20T17:15:08.343Z","modified":"2026-08-07T15:15:18.319302Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.07964,"percentile":0.94395,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","fixedVersion":"1.19.15"},{"ecosystem":"Go","name":"k8s.io/kubernetes","fixedVersion":"1.20.11"},{"ecosystem":"Go","name":"k8s.io/kubernetes","fixedVersion":"1.21.5"},{"ecosystem":"Go","name":"k8s.io/kubernetes","fixedVersion":"1.22.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20211008-0006/"},{"type":"REPORT","url":"https://github.com/kubernetes/kubernetes/issues/104980"},{"type":"ARTICLE","url":"https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:15:18.319302Z"}}