CVE-2026-103505 MEDIUM

CVE-2026-103505: AWS EFS CSI Driver Mount Option Injection via mounttargetipmap

Vendor Aws
Product aws-efs-csi-driver
Weakness CWE-88
Published October 1, 2026
Last update October 2, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 1, 2026 CVE published
October 2, 2026 Record updated