Medium severity6.5NVD Advisory· Published Mar 20, 2026· Updated Jun 17, 2026
CVE-2026-3864
CVE-2026-3864
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/kubernetes-csi/csi-driver-nfsGo | < 0.0.0-20260210055231-316af2d86b91 | 0.0.0-20260210055231-316af2d86b91 |
Affected products
4- Kubernetes/CSI Driver for NFSv5Range: 0
- ghsa-coords3 versionspkg:golang/github.com/kubernetes-csi/csi-driver-nfspkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
< 0.0.0-20260210055231-316af2d86b91+ 2 more
- (no CPE)range: < 0.0.0-20260210055231-316af2d86b91
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
- (no CPE)range: < 0.0.20260326T203309-150000.1.155.2
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-2mjq-54qg-7w6jghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-3864ghsaADVISORY
- www.openwall.com/lists/oss-security/2026/03/17/1nvdWEB
- github.com/kubernetes-csi/csi-driver-nfs/commit/316af2d86b913a595542dc17e8599cf81afd938fghsaWEB
- github.com/kubernetes/kubernetes/issues/137797nvdWEB
- groups.google.com/g/kubernetes-security-announce/c/i4ZKN9VLcUEnvdWEB
News mentions
1- Mount Here, Read There: Twin Path Traversal CVEs in Kubernetes StorageSentinelOne Labs · Jul 23, 2026