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CVE-2026-7461

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

Published: Apr 30, 2026Updated: May 5, 2026 Sources: CVE List NVDCWE-78
NVD MITRE
7.2CVSSHIGH
EPSS Score
0.5%
Top 58.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

Amazon ECS AgentAWS
Mixed
Cloud & SaaS / cloud-platform
amazon ecs container agentamazon
SaaS
Cloud & SaaS / cloud-platform
awscommercialUSCloud & SaaSaka aws
amazoncommercialUSCloud & SaaS

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://github.com/aws/amazon-ecs-agent/releases/tag/v1.103.0
github.com
https://aws.amazon.com/security/security-bulletins/2026-024-aws/
aws.amazon.com
https://github.com/aws/amazon-ecs-agent/security/advisories/GHSA-fc67-c4hg-q653
github.com

Timeline

Published
Apr 30, 2026
Last Updated
May 5, 2026

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