CVE-2026-6437

AWS EFS CSI Driver Mount Option Injection

MEDIUM
6.5
CVSS Score
Published: April 17, 2026 at 06:41 PM UTC
Updated: October 26, 2026 at 10:10 PM UTC
1 product affected across 1 vendorEfs Csi Driver

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.0.1
Vendor states this is fixed in 3.0.1 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMAMZN
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-88

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