Medium 6.5Published Oct 1, 2026

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

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects aws-efs-csi-driver. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for aws-efs-csi-driver

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-88
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: AMZN
NVD analysis: Awaiting Analysis
Record last updated: Oct 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

AWS aws-efs-csi-driver aws:efs_csi_driver (from the name)	from 3.1.0 through 3.4.2	CNA record

References

https://github.com/kubernetes-sigs/aws-efs-csi-driver/releases/tag/v3.5.0patch
https://aws.amazon.com/security/security-bulletins/2026-120-aws/vendor-advisory
https://github.com/kubernetes-sigs/aws-efs-csi-driver/security/advisories/GHSA-pv26-6q9q-5773third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.