CVE-2026-103505

AWS EFS CSI Driver Mount Option Injection via mounttargetipmap

Published Oct 1, 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) v3.1.0 through v3.4.2 might allow remote authenticated users with PersistentVolume creation permissions to inject arbitrary mount options via comma-separated values in the mounttargetipmap volumeAttribute.



To remediate this issue, users should upgrade to version v3.5.0 or later.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:aws: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
First Time appeared Aws
Aws aws-efs-csi-driver
Vendors & Products Aws
Aws aws-efs-csi-driver
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) v3.1.0 through v3.4.2 might allow remote authenticated users with PersistentVolume creation permissions to inject arbitrary mount options via comma-separated values in the mounttargetipmap volumeAttribute. To remediate this issue, users should upgrade to version v3.5.0 or later.
Title AWS EFS CSI Driver Mount Option Injection via mounttargetipmap
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 9, 2026, 4:32 PM
Reserved
Sep 30, 2026, 5:35 PM
Status
Awaiting Analysis
Published
Oct 1, 2026, 4:17 PM
Modified
Oct 2, 2026, 2:17 PM
Severity
Moderate
Public date
Oct 1, 2026, 3:36 PM