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    CVE-2026-7461

    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.

    Published:Apr 30, 2026
    Last Modified:May 5, 2026
    EPS:Apr 30, 2026
    EPSS Score:0.00028
    CVSS Score:7.2

    Affected Products

    Vendor
    Amazon
    Product
    Amazon Ecs Container Agent
    Vendor
    Aws
    Product
    Amazon Ecs Agent

    Exploits

    No exploit reference

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High