CVE catalog
CVE-2026-6437
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 creatio
- Severity
- Medium · CVSS 6.9
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.56% · Oct 25, 2026
A flaw was found in the AWS EFS CSI Driver. Remote authenticated users with PersistentVolume creation permissions can exploit an improper neutralization of argument delimiters by injecting commas into volume handling arguments. This allows for the injection of arbitrary mount options, which could lead to unauthorized access or modification of data. github.com/kubernetes-sigs/aws-efs-csi-driver: AWS EFS CSI Driver: Arbitrary mount option injection The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | efs_csi_driver | Not reported | 3.0.1 | fixed |
| Cpe | efs_csi_driver | Not reported | 3.0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | efs_csi_driver | cpe | Not reported | 3.0.1 | Not reported | Not reported | Not reported |
| Cpe | efs_csi_driver | cpe | Not reported | 3.0.1 | Not reported | NVD-CVE-2026-6437 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://aws.amazon.com/security/security-bulletins/2026-016-aws/]
- [https://github.com/kubernetes-sigs/aws-efs-csi-driver/releases/tag/v3.0.1]
- [https://github.com/kubernetes-sigs/aws-efs-csi-driver/security/advisories/GHSA-mph4-q2vm-w2pw]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-6437]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6437.json]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]