CVE-2026-103505
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.
- Published Oct 1, 2026
- CVSS 6.9 medium
- 0.4% chance of exploitation in the next 30 days (EPSS)
- A fix is available
Affected software
In the news
- CVE-2026-103505 - Mount Option Injection in Amazon EFS CSI Driver AWS Security Bulletins ·