---
id: CVE-2025-14503
title: >-
  An overly-permissive IAM trust policy in the Harmonix on AWS framework may
  allow IAM principals in the same AWS account to escalate privileges via role
  assumption
summary: >-
  An overly-permissive IAM trust policy in the Harmonix on AWS framework may
  allow IAM principals in the same AWS account to escalate privileges via role
  assumption. The sample code for the EKS environment provisioning role is
  configured t…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-266
vendor: amazon
product: harmonix
affected:
  - 'harmonix >= 0.3.0, < 0.4.2'
patched:
  - harmonix 0.4.2
published: '2025-12-15'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14503'
references:
  - url: 'https://aws.amazon.com/security/security-bulletins/AWS-2025-031/'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: 'https://github.com/awslabs/harmonix/pull/189'
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
  - url: >-
      https://github.com/awslabs/harmonix/security/advisories/GHSA-qm86-gqrq-mqcw
    label: ff89ba41-3aa1-4d27-914a-91399e9639e5
tags:
  - nvd
epss: 0.00516
epssPercentile: 0.42282
ingestedAt: '2026-10-14T13:30:58.432Z'
---

## Overview

An overly-permissive IAM trust policy in the Harmonix on AWS framework may allow IAM principals in the same AWS account to escalate privileges via role assumption. The sample code for the EKS environment provisioning role is configured to trust the account root principal, which may enable any IAM principal in the same AWS account with sts:AssumeRole permissions to assume the role with administrative privileges.


We recommend customers upgrade to Harmonix on AWS v0.4.2 or later if you have deployed the framework using versions v0.3.0 through v0.4.1.

## Affected

- `harmonix >= 0.3.0, < 0.4.2`

## Remediation

Upgrade past the affected range:

- `harmonix 0.4.2`