Critical Malicious Code Vulnerability in chai-async-tests Package
Summary
MAL-2026-585: Malicious code in chai-async-tests (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The chai-async-tests package is a testing utility for asynchronous code in JavaScript, commonly used in conjunction with the Chai assertion library. It allows developers to write tests that can handle asynchronous operations, making it easier to ensure code reliability. However, this package has been found to contain malicious code that compromises the security of any system where it is installed.
Vulnerability Detail
The vulnerability originates from the discovery of embedded malicious code within the chai-async-tests 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 malicious nature of this code poses significant risks, as it may lead to data breaches or unauthorized control over the affected systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall chai-async-testsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, you can temporarily disable any tests that rely on the chai-async-tests package until the package is removed and your system is secured. Ensure that you do not run any tests that could potentially execute the malicious code.
Conclusion
The discovery of malicious code in the chai-async-tests package poses a serious threat to any system where it is installed. Immediate action is required to remove the package and secure sensitive information. Utilizing tools like Vulert can help in monitoring for such vulnerabilities in the future.
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FAQ
Immediately remove the chai-async-tests package from your project and rotate any sensitive information stored on the affected system.
You can use Vulert, which monitors open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without needing to sign up.
Keeping the package installed poses significant risks, including unauthorized access to sensitive data and potential control over your system by malicious actors.
As of now, there is no patched version available. The best course of action is to remove the package entirely.
Regularly monitor your dependencies for vulnerabilities using tools like Vulert, and ensure to keep your packages updated to the latest secure versions.
