CVE-2025-14503 json
Overly Permissive Trust Policy in Harmonix on AWS EKS
published 2025-12-15 10 mo ago modified 2026-10-14 26 d ago also EUVD-2025-203445
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
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 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.
Patch / fix
- AWS Harmonix on AWS 0.4.2
- github.com/awslabs/harmonix#189 pull request
- aws.amazon.com/security/security-bulletins/AWS-2025-031/ advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 10 mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- AWS Harmonix on AWS
Classification
- Weakness
-
- CWE-266 Incorrect Privilege Assignment
References
-
github.com
/awslabs/harmonix/pull/189
patch, issue-tracking
-
aws.amazon.com
/security/security-bulletins/AWS-2025-031/
vendor-advisory, patch
-
github.com
/awslabs/harmonix/security/advisories/GHSA-qm86-gqrq-mqcw
third-party-advisory, vendor-advisory
Sources
- CVE List CVE-2025-14503
- NVD CVE-2025-14503
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