{"cve":"CVE-2026-3864","nvd":{"published":"2026-03-20T23:16:48.303","modified":"2026-06-17T10:44:21.283","status":"Awaiting Analysis","description":"A vulnerability was discovered in the Kubernetes CSI Driver for NFS where the subDir parameter in volume identifiers was insufficiently validated. Attackers with the ability to create PersistentVolumes referencing the NFS CSI driver could craft volume identifiers containing path traversal sequences (../). During volume deletion or cleanup operations, the driver could operate on unintended directories outside the intended managed path within the NFS export. This may lead to deletion or modification of directories on the NFS server.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","score":6.5},"cwes":["CWE-22"],"references":["https://github.com/kubernetes/kubernetes/issues/137797","https://groups.google.com/g/kubernetes-security-announce/c/i4ZKN9VLcUE","http://www.openwall.com/lists/oss-security/2026/03/17/1"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-3864","score":0.00731,"percentile":0.54304,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2mjq-54qg-7w6j","url":"https://osv.dev/vulnerability/GHSA-2mjq-54qg-7w6j","summary":"NFS CSI driver for Kubernetes is Vulnerable to Path Traversal through Volume Identifier Parameter","modified":"2026-03-26T21:11:07.373726Z","packages":[{"ecosystem":"Go","name":"github.com/kubernetes-csi/csi-driver-nfs","purl":"pkg:golang/github.com/kubernetes-csi/csi-driver-nfs","ranges":["<0.0.0-20260210055231-316af2d86b91"],"fixed":["0.0.0-20260210055231-316af2d86b91"]}]},{"id":"GO-2026-4816","url":"https://osv.dev/vulnerability/GO-2026-4816","summary":"NFS CSI driver for Kubernetes is Vulnerable to Path Traversal through Volume Identifier Parameter in github.com/kubernetes-csi/csi-driver-nfs","modified":"2026-03-26T21:03:36.263065Z","packages":[{"ecosystem":"Go","name":"github.com/kubernetes-csi/csi-driver-nfs","purl":"pkg:golang/github.com/kubernetes-csi/csi-driver-nfs","ranges":["<0.0.0-20260210055231-316af2d86b91"],"fixed":["0.0.0-20260210055231-316af2d86b91"]}]}],"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."]}