Malicious Code Detected in jest-stable Package - Version 40.1.9
Summary
MAL-2025-192678: Malicious code in jest-stable (npm). Affects jest-stable versions 40.1.9. No fix is published. How to fix ↓
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Background
The 'jest-stable' package is a variant of the popular Jest testing framework used in JavaScript applications. It is designed to facilitate unit testing and ensure code quality through automated testing. However, the specific version 40.1.9 has been flagged for malicious behavior, which undermines its reliability and poses security risks to applications that depend on it.
Vulnerability Detail
The vulnerability in the 'jest-stable' package arises from its ability to communicate with a domain linked to malicious activities and execute commands that are harmful. This behavior can lead to unauthorized access, data breaches, or the execution of arbitrary code within the user's environment, potentially compromising the integrity of the application and its data.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall jest-stableIf 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 'jest-stable' package from your project until a secure version is released. You can do this by running the command: 'npm uninstall jest-stable'. Alternatively, you can use the original Jest package if it meets your testing requirements.
Conclusion
The 'jest-stable' package version 40.1.9 has been identified as malicious, posing significant security risks to applications that utilize it. It is crucial to update to a secure version or remove the package until a fix is available. Monitoring tools like Vulert can assist in identifying vulnerabilities in your software.
See every vulnerability recorded for jest-stable →
FAQ
The 'jest-stable' package is a testing framework for JavaScript applications, designed to help developers write and run unit tests.
The malicious behavior was identified by the OpenSSF Package Analysis project, which flagged the package for communicating with a malicious domain and executing harmful commands.
Using the compromised version can lead to unauthorized access, data breaches, and execution of harmful commands, potentially compromising application security.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just the package-lock.json file. You can check for vulnerabilities in your application without requiring access to the code or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
