CVE-2026-6437

AWS EFS CSI Driver Mount Option Injection

Published Apr 17, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-mph4-q2vm-w2pw Amazon EFS CSI Driver has mount option injection via unsanitized volumeHandle and mounttargetip fields
History
Type Values Removed Values Added
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 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
CPEs cpe:2.3:a:amazon:aws_efs_csi_driver:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Amazon efs Csi Driver
CPEs cpe:2.3:a:amazon:efs_csi_driver:*:*:*:*:*:kubernetes:*:*
Vendors & Products Amazon efs Csi Driver
Type Values Removed Values Added
First Time appeared Amazon
Amazon aws Efs Csi Driver
Vendors & Products Amazon
Amazon aws Efs Csi Driver
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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
Title AWS EFS CSI Driver Mount Option Injection
Weaknesses CWE-88
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMZN
Published
Updated
Oct 20, 2026, 6:20 PM
Reserved
Apr 16, 2026, 5:42 PM
Status
Modified
Published
Apr 17, 2026, 7:16 PM
Modified
Oct 26, 2026, 10:10 PM
Severity
Moderate
Public date
Apr 17, 2026, 6:41 PM