High 7.2Published Apr 30, 2026

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

Updated under an hour ago (Oct 26, 2026, 12:10 AM ET)

Does this affect you?

It affects AWS Amazon ECS Agent and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for AWS Amazon ECS Agent

Exploited in the last 30 days

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.

CVSS: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-78
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: Analyzed
Record last updated: Apr 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

AWS Amazon ECS Agent aws:amazon_ecs_agent (from the name)	from 1.47.0 through 1.102.0	CNA record
amazon amazon_ecs_container_agent amazon:amazon_ecs_container_agent	from 1.47.0 before 1.103.0	NVD

References

https://github.com/aws/amazon-ecs-agent/releases/tag/v1.103.0patch, release-notes
https://aws.amazon.com/security/security-bulletins/2026-024-aws/vendor-advisory
https://github.com/aws/amazon-ecs-agent/security/advisories/GHSA-fc67-c4hg-q653third-party-advisory, vendor-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.