Critical Malicious Code Vulnerability in @hrmony/interfaces Package
Summary
MAL-2026-17262: Malicious code in @hrmony/interfaces (npm). Affects @hrmony/interfaces versions 0.99.0. No fix is published. How to fix ↓
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Background
The @hrmony/interfaces package is an npm library designed for internal use, which has been found to contain malicious code. This package is intended for managing interfaces in applications but has been compromised, leading to severe security risks for any system that installs it. The malicious code executes upon import, making it particularly dangerous.
Vulnerability Detail
The vulnerability originates from the package's index.js file, which executes top-level asynchronous code on any require or import of the package. This code retrieves sensitive AWS IMDSv2 tokens, EC2 instance identity, IAM role temporary security credentials, user data, and network metadata. It also serializes the entire process environment and reads Kubernetes secrets, ultimately exfiltrating this information to a hardcoded endpoint. The ramifications include unauthorized access to AWS resources, CI/CD pipelines, and sensitive data, effectively compromising any system that has the package installed.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall @hrmony/interfacesIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can isolate the affected application from the network to prevent data exfiltration while you remove the package. Additionally, consider using environment variable management tools to secure sensitive information.
Conclusion
The @hrmony/interfaces package contains a critical vulnerability that can lead to severe security breaches. Immediate action is required to remove the package and secure any exposed credentials. Utilizing tools like Vulert can help in monitoring and preventing such vulnerabilities in the future.
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FAQ
You should remove the package immediately and rotate any credentials or secrets that may have been exposed.
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Leaving this package installed can lead to unauthorized access to your AWS resources, sensitive data exposure, and potential control over your system by malicious actors.
Regularly audit your dependencies, use tools like Vulert for real-time monitoring, and ensure to follow best practices for package management.
If immediate removal is not possible, isolate the application from the network to mitigate the risk of data exfiltration.
