# CVE-2026-7461: OS Command Injection in Amazon ECS Agent via FSx Windows File Server Volume Credentials

> CVE-2026-7461: OS Command Injection in Amazon ECS Agent via FSx Windows File Server Volume Credentials. CVSS 7.2 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-7461
Last updated: 2026-06-17T11:02:27Z

- Published: 2026-04-30 18:35 UTC · Updated: 2026-06-17 11:02 UTC · Assigner: AMZN
- CVSS: 7.2 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS: 0.55%, 46th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-78

## Description

Improper neutralization of inputs used in an OS command in the FSx Windows File Server volume mounting component in Amazon ECS Agent on Windows before version 1.103.0 might allow a remote authenticated threat actor to execute shell commands with SYSTEM privileges on the underlying host via a specially crafted username field in an ECS task definition. This issue requires permissions to register ECS task definitions or write to the Secrets Manager or SSM Parameter Store credentials used by the FSx volume configuration. To remediate this issue, users should upgrade to version 1.103.0.

## Affected vendors and products

- AWS: Amazon ECS Agent

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-7461)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-7461)
- [https://aws.amazon.com/security/security-bulletins/2026-024-aws/](https://aws.amazon.com/security/security-bulletins/2026-024-aws/)
- [https://github.com/aws/amazon-ecs-agent/releases/tag/v1.103.0](https://github.com/aws/amazon-ecs-agent/releases/tag/v1.103.0)
- [https://github.com/aws/amazon-ecs-agent/security/advisories/GHSA-fc67-c4hg-q653](https://github.com/aws/amazon-ecs-agent/security/advisories/GHSA-fc67-c4hg-q653)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-7461 · Markdown: https://rewindex.com/cve/CVE-2026-7461.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-7461 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:05:17.231Z