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
Product
Action
Vendor
Amazon
Product
Amazon Ecs Container Agent
Amazon
Amazon Ecs Container Agent
Vendor
Aws
Product
Amazon Ecs Agent
Aws
Amazon Ecs Agent
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
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
