{"cve":"CVE-2021-25741","nvd":{"published":"2021-09-20T17:15:08.343","modified":"2026-06-17T03:42:23.107","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-552","CWE-20"],"references":["https://github.com/kubernetes/kubernetes/issues/104980","https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s","https://security.netapp.com/advisory/ntap-20211008-0006/","https://github.com/kubernetes/kubernetes/issues/104980","https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s"],"products":["kubernetes:kubernetes"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-25741","score":0.07964,"percentile":0.94747,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-f5f7-6478-qm6p","url":"https://osv.dev/vulnerability/GHSA-f5f7-6478-qm6p","summary":"Files or Directories Accessible to External Parties in kubernetes","modified":"2026-09-10T03:49:09.725664982Z","packages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":["<1.19.15"],"fixed":["1.19.15"]},{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.20.0 <1.20.11"],"fixed":["1.20.11"]},{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.21.0 <1.21.5"],"fixed":["1.21.5"]},{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":[">=1.22.0 <1.22.2"],"fixed":["1.22.2"]}]},{"id":"GO-2022-0910","url":"https://osv.dev/vulnerability/GO-2022-0910","summary":"Files or Directories Accessible to External Parties in kubernetes in k8s.io/kubernetes","modified":"2026-02-04T03:02:42.992168Z","packages":[{"ecosystem":"Go","name":"k8s.io/kubernetes","purl":"pkg:golang/k8s.io/kubernetes","ranges":["<1.19.15",">=1.20.0 <1.20.11",">=1.21.0 <1.21.5",">=1.22.0 <1.22.2"],"fixed":["1.19.15","1.20.11","1.21.5","1.22.2"]}]}],"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."]}