Critical Malicious Code Vulnerability in @hrmony/pladddform-testing Package
Summary
MAL-2026-17280: Malicious code in @hrmony/pladddform-testing (npm). Affects @hrmony/pladddform-testing versions 40.14.3. No fix is published. How to fix ↓
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Background
The @hrmony/pladddform-testing package is an npm module that appears to serve no legitimate purpose. It lacks meaningful functionality and contains only an exfiltration script designed to compromise the host system. This package is likely a result of typosquatting or dependency confusion, targeting users of similarly named packages.
Vulnerability Detail
The vulnerability originates from the package's index.js file, which executes an unconditional exfiltration payload upon import. It queries the AWS EC2 Instance Metadata Service to extract sensitive information, including instance identity documents, user-data, IAM role names, and temporary security credentials. Additionally, it reads environment variables and files from the Kubernetes secrets directory. The collected data is sent to a hardcoded attacker endpoint, compromising the host system completely. Any system running this package should be considered fully compromised.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall @hrmony/pladddform-testingIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
There are no effective workarounds for this vulnerability. The only safe action is to remove the package and secure the system.
Conclusion
The @hrmony/pladddform-testing package contains a critical vulnerability that allows for malicious code execution and data exfiltration. Immediate action is required to remove the package and secure any compromised systems. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.
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FAQ
You should immediately uninstall the package and rotate all sensitive credentials stored on the affected system.
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The risks include complete compromise of the host system, unauthorized access to sensitive data, and potential exploitation by attackers.
To prevent similar vulnerabilities, ensure to verify the legitimacy of packages before installation, and consider using tools like Vulert to monitor for vulnerabilities.
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