CVE-2026-6437: CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') in Amazon AWS EFS CSI Driver
CVE-2026-6437 is a vulnerability in the AWS EFS CSI Driver before version 3. 0. 1 where improper neutralization of argument delimiters allows remote authenticated users with PersistentVolume creation permissions to inject arbitrary mount options via comma injection. This could lead to high confidentiality and integrity impact. A fix is available in version 3. 0. 1. AWS manages remediation for this cloud-hosted service; users should upgrade to the fixed version.
AI Analysis
Technical Summary
The AWS EFS CSI Driver prior to v3.0.1 contains a CWE-88 vulnerability due to improper neutralization of argument delimiters in its volume handling component. This flaw allows remote authenticated users who have PersistentVolume creation permissions to perform argument injection by injecting arbitrary mount options through comma injection. The vulnerability has a CVSS 3.1 base score of 6.5, indicating a medium severity with network attack vector, low attack complexity, and high confidentiality and integrity impact. AWS has released version 3.0.1 to remediate this issue.
Potential Impact
Successful exploitation allows an authenticated user with PersistentVolume creation permissions to inject arbitrary mount options, potentially compromising confidentiality and integrity of the system using the AWS EFS CSI Driver. There is no indication of availability impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A patch is available in AWS EFS CSI Driver version 3.0.1. Users should upgrade to this version to remediate the vulnerability. Since this is a cloud-hosted service, AWS manages remediation server-side; however, users deploying the driver should ensure they are using the patched version. Refer to the official AWS security bulletin at https://aws.amazon.com/security/security-bulletins/2026-016-aws/ for detailed guidance.
CVE-2026-6437: CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') in Amazon AWS EFS CSI Driver
Description
CVE-2026-6437 is a vulnerability in the AWS EFS CSI Driver before version 3. 0. 1 where improper neutralization of argument delimiters allows remote authenticated users with PersistentVolume creation permissions to inject arbitrary mount options via comma injection. This could lead to high confidentiality and integrity impact. A fix is available in version 3. 0. 1. AWS manages remediation for this cloud-hosted service; users should upgrade to the fixed version.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The AWS EFS CSI Driver prior to v3.0.1 contains a CWE-88 vulnerability due to improper neutralization of argument delimiters in its volume handling component. This flaw allows remote authenticated users who have PersistentVolume creation permissions to perform argument injection by injecting arbitrary mount options through comma injection. The vulnerability has a CVSS 3.1 base score of 6.5, indicating a medium severity with network attack vector, low attack complexity, and high confidentiality and integrity impact. AWS has released version 3.0.1 to remediate this issue.
Potential Impact
Successful exploitation allows an authenticated user with PersistentVolume creation permissions to inject arbitrary mount options, potentially compromising confidentiality and integrity of the system using the AWS EFS CSI Driver. There is no indication of availability impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A patch is available in AWS EFS CSI Driver version 3.0.1. Users should upgrade to this version to remediate the vulnerability. Since this is a cloud-hosted service, AWS manages remediation server-side; however, users deploying the driver should ensure they are using the patched version. Refer to the official AWS security bulletin at https://aws.amazon.com/security/security-bulletins/2026-016-aws/ for detailed guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- AMZN
- Date Reserved
- 2026-04-16T17:42:09.910Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://aws.amazon.com/security/security-bulletins/2026-016-aws/","vendor":"AWS"}]
Threat ID: 69e28194bdfbbecc597b95e2
Added to database: 4/17/2026, 6:53:08 PM
Last enriched: 4/17/2026, 7:08:22 PM
Last updated: 4/17/2026, 7:54:59 PM
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.