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

References

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

https://aws.amazon.com/security/security-bulletins/rss/2026-016-aws/

https://github.com/kubernetes-sigs/aws-efs-csi-driver/security/advisories/GHSA-mph4-q2vm-w2pw

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

Details

Source: Mitre, NVD

Published: 2026-04-17

Updated: 2026-06-01

Risk Information

CVSS v2

Base Score: 7.7

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:H/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00029