Critical Malicious Code Vulnerability in cli-wasm Package
Summary
MAL-2025-5677: Malicious code in cli-wasm (npm). Affects cli-wasm versions 0.0.1 – 2.2.2. No fix is published. How to fix ↓
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Background
The cli-wasm package is a tool designed for executing WebAssembly modules in command-line environments. It allows developers to leverage the performance benefits of WebAssembly in various applications. However, this package has been found to contain embedded malicious code, posing significant security risks to users who install it.
Vulnerability Detail
The vulnerability originates from the inclusion of malicious code within the cli-wasm package. Any computer that has this package installed is considered fully compromised, meaning that all secrets and keys stored on that computer should be rotated immediately from a different machine. The malicious code can potentially allow unauthorized access and control over the affected system, leading to data breaches and further exploitation.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall cli-wasmIf 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 avoid using the cli-wasm package and explore alternative packages that provide similar functionality without the associated risks. Additionally, ensure that your system's security measures are up to date.
Conclusion
The cli-wasm package has been identified as containing malicious code, posing serious security risks to users. Immediate action is required to remove the package and secure any sensitive information. Regular monitoring of dependencies and using tools like Vulert can help prevent future vulnerabilities.
See every vulnerability recorded for cli-wasm →
FAQ
You should immediately uninstall the cli-wasm package and rotate any sensitive information stored on your system.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.
Regularly monitor your dependencies for vulnerabilities using tools like Vulert and keep your packages updated to the latest secure versions.
Ignoring this vulnerability can lead to unauthorized access to your system, data breaches, and potential exploitation by malicious actors.
You can find detailed information about the cli-wasm vulnerability on its GitHub repository and security advisories related to it.
