Malicious Code Detected in bonsailib: A Critical Vulnerability
Summary
MAL-2025-15951: Malicious code in bonsailib (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package bonsailib is an npm library designed to facilitate various functionalities in JavaScript applications. It is commonly used for its ease of integration and utility features. However, recent findings have revealed that this package contains malicious code, posing significant security risks to applications that utilize it.
Vulnerability Detail
The vulnerability in bonsailib arises from the presence of malicious code embedded within the package. This code can lead to unauthorized access, data breaches, or other harmful actions within the applications that depend on it. The malicious nature of this code was identified in a security audit conducted by Amazon Inspector, which flagged the package as compromised. Users of bonsailib should be aware that any version from its introduction is affected, making it imperative to take immediate action.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall bonsailibIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, consider removing the bonsailib package from your project until a secure version is released. You can uninstall it using the command: npm uninstall bonsailib. Alternatively, you may explore other libraries that provide similar functionalities without the associated risks.
Conclusion
The discovery of malicious code in the bonsailib package poses a serious threat to applications that utilize it. Users are strongly advised to update or remove the package to mitigate potential risks. Regular monitoring for vulnerabilities using tools like Vulert can help maintain the security of your software.
See every vulnerability recorded for bonsailib →
FAQ
Bonsailib is an npm package used in JavaScript applications for various utility functions.
The malicious code was discovered during a security audit by Amazon Inspector, which identified vulnerabilities in the package.
Using bonsailib can expose your application to security threats such as unauthorized access and data breaches due to the embedded malicious code.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without any signup.
If you cannot update the package right away, consider removing it from your project or replacing it with a safer alternative until a secure version is available.
