What is CVE-2026-6437?

CVE-2026-6437 is a medium-severity vulnerability in Amazon Aws Efs Csi Driver, classified under Argument Injection. CVSS score: 6.5/10. Published 2026-04-17.

How severe is CVE-2026-6437?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Amazon Aws Efs Csi Driver

CVE-2026-6437

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…

EPSS: 0.000 (4.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Amazon Aws Efs Csi Driver — versions 3.0.1
Amazon Efs_csi_driver

Weakness classification (CWE)

CWE-88 — Argument Injection

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory, Vendor Advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (Vendor Advisory, third-party-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (Release Notes, patch)

Frequently asked questions

What is CVE-2026-6437?: CVE-2026-6437 is a medium-severity vulnerability in Amazon Aws Efs Csi Driver, classified under Argument Injection. CVSS score: 6.5/10. Published 2026-04-17.
How severe is CVE-2026-6437?: Medium severity. CVSS v3 base score is 6.5 out of 10.