CVE-2025-14503: harmonix — Fix

Description

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.

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CVSS v3.1 Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-266 CWE-266

Affected Products

Vendor	Product	Versions
amazon	harmonix	0.3.0 — 0.4.2

References

Advisories & Patches

https://aws.amazon.com/security/security-bulletins/AWS-2025-031/ https://github.com/awslabs/harmonix/security/advisories/GHSA-qm86-gqrq-mqcw

Other References

https://github.com/awslabs/harmonix/pull/189

Frequently Asked Questions

What is CVE-2025-14503? +

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. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2025-14503? +

CVE-2025-14503 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-14503? +

CVE-2025-14503 affects products from amazon, specifically: harmonix. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-14503? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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