cve.bz

CVE-2026-3864

6.5 mediumEPSS 0.7%

Medium (6.5). EPSS 0.7% chance of exploitation in the next 30 days. Fixed in github.com/kubernetes-csi/csi-driver-nfs 0.0.0-20260210055231-316af2d86b91.

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

CVSS 3.1

6.5 medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
EPSS
0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE
CWE-22
Published
Modified
Record from
the NVD, synced

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-2mjq-54qg-7w6jGogithub.com/kubernetes-csi/csi-driver-nfs<0.0.0-20260210055231-316af2d86b910.0.0-20260210055231-316af2d86b91
GO-2026-4816Gogithub.com/kubernetes-csi/csi-driver-nfs<0.0.0-20260210055231-316af2d86b910.0.0-20260210055231-316af2d86b91

References

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