Malicious Code Detected in calclash Package - Security Alert
Summary
MAL-2025-16443: Malicious code in calclash (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The calclash package is an npm library designed for performing calculations in a streamlined manner. It offers various mathematical functions and utilities that developers can integrate into their applications. However, recent findings have revealed that this package contains malicious code, posing significant security risks to users who implement it in their projects.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the calclash package, which was introduced in version 0. This code can potentially compromise the security of applications that utilize the package, leading to unauthorized access, data breaches, or other malicious activities. Users are advised to take immediate action to mitigate these risks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall calclashIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, users can remove the calclash package from their project until a secure version is released. This can be done by executing the following command: npm uninstall calclash.
Conclusion
The discovery of malicious code in the calclash package highlights the importance of regularly monitoring and updating open-source dependencies. Users are encouraged to take immediate action by updating or removing the package to safeguard their applications.
See every vulnerability recorded for calclash →
FAQ
Calclash is an npm library that provides various mathematical functions and utilities for developers.
The specific nature of the malicious code has not been disclosed, but it poses significant security risks to applications using the package.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without requiring any signup.
As a temporary measure, you should uninstall the calclash package from your project until a secure version is available.
The vulnerability was discovered by Amazon Inspector, a security service that helps identify vulnerabilities in applications.
