CVE-2026-3864: Github.com/kubernetes csi/csi driver nfs Path Traversal Vulnerability
MODERATECVE-2026-3864 is a MODERATE (CVSS 6.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Github.com/kubernetes csi/csi driver nfs libraries in the Go ecosystem. The issue involves nfs csi driver for kubernetes is vulnerable to path traversal through volume identifier parameter. Remediation is available by upgrading affected packages to version 0.0.0-20260210055231-316af2d86b91.
CVE-2026-3864 at a Glance
Security Impact
CVSS: 6.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H).
How to Fix CVE-2026-3864
To remediate this vulnerability, upgrade all affected Github.com/kubernetes csi/csi driver nfs dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/kubernetes-csi/csi-driver-nfs to 0.0.0-20260210055231-316af2d86b91Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/kubernetes-csi/csi-driver-nfsHow to Check if You Are Affected
To determine whether your application is affected by CVE-2026-3864, inspect your project dependencies for Github.com/kubernetes csi/csi driver nfs:
inspect dependencies for github.com/kubernetes-csi/csi-driver-nfsAnalyze the terminal output to locate any version of Github.com/kubernetes csi/csi driver nfs in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.0-20260210055231-316af2d86b91), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Github.com/kubernetes csi/csi driver nfs, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-3864 Affected Github.com/kubernetes csi/csi driver nfs Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/kubernetes-csi/csi-driver-nfs
|
Go |
< 0.0.0-20260210055231-316af2d86b91
|
0.0.0-20260210055231-316af2d86b91
|
References
Frequently Asked Questions
What is CVE-2026-3864?
Which Github.com/kubernetes csi/csi driver nfs versions are affected?
What version fixes CVE-2026-3864?
Is github.com/kubernetes-csi/csi-driver-nfs affected?
What is the CVSS score of CVE-2026-3864?
What CWE is associated with CVE-2026-3864?
How can I check Go dependencies for CVE-2026-3864?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-2mjq-54qg-7w6j",
"modified" : "2026-03-24T16:11:26Z",
"published" : "2026-03-21T00:31:43Z",
"aliases" : [ "CVE-2026-3864" ],
"summary" : "NFS CSI driver for Kubernetes is Vulnerable to Path Traversal through Volume Identifier Parameter",
"details" : "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.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/kubernetes-csi/csi-driver-nfs"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "0.0.0-20260210055231-316af2d86b91"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-3864"
}, {
"type" : "WEB",
"url" : "https://github.com/kubernetes/kubernetes/issues/137797"
}, {
"type" : "WEB",
"url" : "https://github.com/kubernetes-csi/csi-driver-nfs/commit/316af2d86b913a595542dc17e8599cf81afd938f"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/kubernetes-csi/csi-driver-nfs"
}, {
"type" : "WEB",
"url" : "https://groups.google.com/g/kubernetes-security-announce/c/i4ZKN9VLcUE"
}, {
"type" : "WEB",
"url" : "http://www.openwall.com/lists/oss-security/2026/03/17/1"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-22" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2026-03-24T16:11:26Z",
"nvd_published_at" : "2026-03-20T23:16:48Z"
}
}