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VULNERABILITIES

CVE-2026-3864 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
http://www.openwall.com/lists/oss-security/2026/03/17/1 CVE
https://github.com/kubernetes/kubernetes/issues/137797 [email protected]
https://groups.google.com/g/kubernetes-security-announce/c/i4ZKN9VLcUE [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-3864
NVD Published Date:
Mar 20, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]