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OpenAdvisories
High · 7.2 CVE-2026-7461 EUVD-2026-26412GHSA-fc67-c4hg-q653GHSA-w2r9-8jfw-7fprGO-2026-5353

OS Command Injection in Amazon ECS Agent via FSx Windows File Server Volume Credentials

Published Apr 30, 2026 · Updated May 1, 2026 · Assigned by AMZN

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 products

VendorProductAffectedFixed
AWS Amazon ECS Agent 1.47.0 – ≤ 1.102.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/aws/amazon-ecs-agent >= 1.47.0, < 1.103.0 1.103.0 GHSA-fc67-c4hg-q653

References