Critical Malicious Code Vulnerability in chai-lite-lib Package
Summary
MAL-2026-1034: Malicious code in chai-lite-lib (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
chai-lite-lib is an npm package designed for lightweight assertion libraries in JavaScript testing. It is commonly used in various applications to facilitate testing by providing a simple and expressive syntax for assertions. 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 inclusion of malicious code within the chai-lite-lib 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 implications are severe, as it may lead to data breaches and loss of control over the affected systems. Users are advised to treat any system with this package as compromised.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall chai-lite-libIf 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 other than removing the package entirely. Ensure that you also check for any other dependencies that may rely on chai-lite-lib and address them accordingly.
Conclusion
The discovery of malicious code within the chai-lite-lib package poses a significant threat to users and their systems. Immediate action is required to mitigate the risks associated with this vulnerability. Users should uninstall the package, rotate sensitive information, and utilize tools like Vulert to monitor for future vulnerabilities.
See every vulnerability recorded for chai-lite-lib →
FAQ
Immediately uninstall the chai-lite-lib package and rotate any sensitive information stored on the affected system.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Failing to remove the package can lead to unauthorized access to your system, data breaches, and potential exploitation of sensitive information.
Regularly monitor your dependencies using tools like Vulert, which can alert you to open-source vulnerabilities in real-time.
It is highly recommended to avoid using chai-lite-lib until a secure version is released, as the current version contains malicious code.
