7.5

CVE-2026-7461: amazon amazon_ecs_container_agent OS Command Injection

CVSS: 7.5v4.0HighAnalyzed
AliasesGHSA-fc67-c4hg-q653GO-2026-5353
Published 30-04-2026Last modified 01-05-2026
Open JSON

Vulnerability summary

CVE-2026-7461 is a high (CVSS 7.5) OS Command Injection vulnerability in amazon amazon_ecs_container_agent. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v4.0 (CVE.org)
EPSS score
0.81%
0%100%
Low · +0.26 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-04-2026
    PublishedVulnerability first disclosed.
  2. 01-05-2026
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 3 sources · 2 versions

EPSS trend

Probability

0.81%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

+0.26 pp

From 0.55% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Amazon1 product
Aws1 product
Github.com/aws1 product
  • amazon-ecs-agent≥ 1.47.0, < 1.103.0

3 vendors · 3 products

References

4 links