CVE-2026-6437

Medium

Description

Improper neutralization of argument delimiters in the volume handling component in AWS EFS CSI Driver (aws-efs-csi-driver) before v3.0.1 allows remote authenticated users with PersistentVolume creation permissions to inject arbitrary mount options via comma injection. To remediate this issue, users should upgrade to version v3.0.1

SeverityMedium

CVSS6.5

Exploit probability—

ProductAmazon Efs Csi Driver

PublishedApr 17, 2026

First seenApr 17, 2026

Weakness typeCWE-88CWE-88

How to fix

Update

amazon efs_csi_driver3.0.1 or later
github.com/kubernetes-sigs/aws-efs-csi-driver1.7.8-0.20260416142831-51806c22c575 or later

Patches

github.com/kubernetes-sigs/aws-efs-csi-driver/releases/tag/v3.0.1

Vendor advisories

aws.amazon.com/security/security-bulletins/2026-016-aws/

Affected products

Product	Affected versions	Fixed in
amazon efs_csi_driver	v < 3.0.1	3.0.1
github.com/kubernetes-sigs/aws-efs-csi-driverGo	v < 1.7.8-0.20260416142831-51806c22c575	1.7.8-0.20260416142831-51806c22c575

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