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CVE-2026-6437

AWS EFS CSI Driver Mount Option Injection

Published: Apr 17, 2026Updated: Apr 17, 2026 Sources: CVE List NVD

6.5CVSS

MEDIUM

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

EPSS Score

N/A

CISA KEV

Not in KEV

Exploits

No Known Exploits

Remediation

No Fix Available

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:HPrivileges Required

High

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:NAvailability

None

Weaknesses

CWE-88

Affected Products

AWS EFS CSI Driver

Amazon

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique

Execution

View detailed technique mapping

References

https://aws.amazon.com/security/security-bulletins/2026-016-aws/

aws.amazon.com

https://github.com/kubernetes-sigs/aws-efs-csi-driver/security/advisories/GHSA-mph4-q2vm-w2pw

github.com

https://github.com/kubernetes-sigs/aws-efs-csi-driver/releases/tag/v3.0.1

github.com

Timeline

Published

Apr 17, 2026

Last Updated

Apr 17, 2026

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