CVE-2026-7461
HighSummary
The FSx Windows File Server volume mounting component in Amazon ECS Agent before version 1.103.0 has improper neutralization of inputs used in OS commands. This may allow a remote authenticated threat actor to execute shell commands with SYSTEM privileges on the underlying host.
Risk Assessment
An attacker with the appropriate permissions could gain full access to the system, posing a serious security risk to the organization.
Recommendation
It is recommended to upgrade to version 1.103.0 to remediate this vulnerability.
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Original NVD description (English source)
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.

