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.

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Fixes

Solution

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Workaround

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History

Fri, 02 Oct 2026 14:00:00 +0000


Fri, 02 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 02 Oct 2026 09:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Aws
Aws aws-efs-csi-driver
Vendors & Products Aws
Aws aws-efs-csi-driver

Thu, 01 Oct 2026 15:45:00 +0000

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-10-02T13:52:28.136Z

Reserved: 2026-09-30T17:35:44.736Z

Link: CVE-2026-103505

cve-icon Vulnrichment

Updated: 2026-10-01T16:02:00.859Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-01T16:17:36.627

Modified: 2026-10-02T14:17:07.940

Link: CVE-2026-103505

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-01T15:36:04Z

Links: CVE-2026-103505 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T16:30:10Z

Weaknesses