Critical Malicious Code Vulnerability in chai-promised-chain Package
Summary
MAL-2025-192319: Malicious code in chai-promised-chain (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
chai-promised-chain is an npm package designed to facilitate the chaining of promises in JavaScript applications. It aims to simplify asynchronous code management by allowing developers to write cleaner and more readable promise-based code. However, this package has been identified as containing malicious code that compromises the security of any system where it is installed.
Vulnerability Detail
The vulnerability originates from the inclusion of malicious code within the chai-promised-chain package. This code can fully compromise any computer that has the package installed, allowing unauthorized access to sensitive information such as secrets and keys. The ramifications are severe, as it may lead to data breaches and loss of control over the affected systems. The specific technical aspect of this vulnerability is classified under CWE-506, indicating that the product contains code that appears to be malicious in nature.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall chai-promised-chainIf 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 best course of action is to uninstall the package and monitor your system for any unusual activity.
Conclusion
The discovery of malicious code in the chai-promised-chain package poses a serious security threat to any system where it is installed. Immediate action is required to uninstall the package and secure sensitive information. Utilizing tools like Vulert can help prevent similar vulnerabilities in the future.
See every vulnerability recorded for chai-promised-chain →
FAQ
You should immediately uninstall the package using the command npm uninstall chai-promised-chain and rotate any sensitive information stored on the affected system.
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Keeping this package installed poses significant risks, including unauthorized access to sensitive data and potential control over your system by malicious actors.
Regularly monitor your dependencies using tools like Vulert, which can alert you to vulnerabilities in your open-source packages.
Vulert is a tool that monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities in your software, helping you maintain secure applications.
