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 options via comma injection. To remediate this issue, users should upgrade to version v3.0.1
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (53.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.002
Affected products
- Amazon AWS Efs Csi Driver — versions 3.0.1
- Amazon Efs Csi Driver
Weakness classification (CWE)
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.