CVE-2026-6437 | THREATINT

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

PUBLISHED Reserved 2026-04-16 | Published 2026-04-17 | Updated 2026-04-17 | Assigner AMZN

MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:H/SI:N/SA:N

Problem types

CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Product status

Default status

unaffected

3.0.1

unaffected

References

aws.amazon.com/security/security-bulletins/2026-016-aws/ vendor-advisory

github.com/...driver/security/advisories/GHSA-mph4-q2vm-w2pw third-party-advisory

github.com/...es-sigs/aws-efs-csi-driver/releases/tag/v3.0.1 patch

cve.org (CVE-2026-6437)

nvd.nist.gov (CVE-2026-6437)

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