Malicious Code Detected in emulate-slow-execute-try-small Package
Summary
MAL-2025-19638: Malicious code in emulate-slow-execute-try-small (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The 'emulate-slow-execute-try-small' package is an npm library designed to simulate slow execution for testing purposes. It is often used in development environments to mimic performance issues. However, this package has been found to contain malicious code, posing a significant risk to applications that utilize it.
Vulnerability Detail
The vulnerability originates from the inclusion of malicious code within the 'emulate-slow-execute-try-small' package. This code can potentially compromise the security of applications that depend on this package, leading to unauthorized access, data breaches, or other malicious activities. The issue is particularly concerning as it affects all versions starting from the initial release, making it critical for users to take immediate action.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall emulate-slow-execute-try-smallIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, consider using alternative packages that provide similar functionality without the associated risks. Additionally, you can monitor your project for vulnerabilities using tools like Vulert, which analyzes your package-lock.json file for real-time alerts on open-source vulnerabilities.
Conclusion
The 'emulate-slow-execute-try-small' package has been identified as containing malicious code, which poses a serious threat to applications that utilize it. Users are advised to remove the package and monitor their projects for vulnerabilities using tools like Vulert.
See every vulnerability recorded for emulate-slow-execute-try-small →
FAQ
It is an npm package designed to simulate slow execution for testing purposes in development environments.
The specific nature of the malicious code has not been disclosed, but it poses security risks such as unauthorized access and data breaches.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
You should remove the package from your project immediately and look for alternative solutions.
Yes, you can use Vulert, which monitors your package-lock.json file for vulnerabilities in real-time.
