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Advisory record · GHSA-fc67-c4hg-q653

Amazon ECS Container Agent (Windows) is vulnerable to Information Disclosure

CVSS 7.5 HighEPSS 0.0055 · 46th percentile

Published by the GitHub Advisory Database at 7 May 2026, 01:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/aws/amazon-ecs-agentGo>=1.47.0, <1.103.01.103.0
Identifiers
GHSA-fc67-c4hg-q653 · CVE-2026-7461 · GO-2026-5353
Weakness (CWE)
CWE-78
Tags
Published
7 May 2026
Updated
8 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Amazon ECS Container Agent on Windows, versions 1.47.0 through 1.102.2, is vulnerable to command injection in its FSx Windows File Server volume mounting process via a specially crafted username field. An authenticated attacker who can register ECS task definitions or write to the Secrets Manager or SSM Parameter Store credentials used by the FSx volume could run shell commands with SYSTEM privileges on the host. Upgrade to version 1.103.0 or later; until then, restrict ecs:RegisterTaskDefinition permissions to trusted principals and limit write access to the affected secrets.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 4.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CNA (AMZN)
  • CISA KEV Not listed.
  • EPSS 0.0055, the 46th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:05 UTC First seen by agentprime
  2. 31 Oct 2026, 15:05 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.