Malicious Code Detected in exec-less-request-cosmicweb Package

exec-less-request-cosmicweb Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-20040: Malicious code in exec-less-request-cosmicweb (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The exec-less-request-cosmicweb package is an npm library designed to facilitate HTTP requests without the need for a server-side execution environment. It is often used in web applications to streamline API interactions. However, this package has been found to contain malicious code, posing a significant risk to users and their applications.

Vulnerability Detail

The vulnerability originates from the inclusion of malicious code within the exec-less-request-cosmicweb package. This code can potentially compromise the security of applications that utilize this package, leading to unauthorized access, data breaches, or other malicious activities. The presence of such code can severely affect the integrity and confidentiality of user data.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall exec-less-request-cosmicweb

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary workaround, consider using alternative packages that provide similar functionality without the associated risks. Always ensure to review the security of any third-party libraries before integrating them into your project.

Conclusion

The exec-less-request-cosmicweb package has been found to contain malicious code, posing a serious threat to applications that utilize it. Users are advised to uninstall the package and monitor their applications for vulnerabilities using tools like Vulert. Staying informed and proactive is crucial in maintaining application security.

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FAQ

It is an npm library designed for making HTTP requests without requiring server-side execution.

The malicious code was identified through security assessments and monitoring by security tools such as Amazon Inspector.

The risks include unauthorized access to sensitive data, potential data breaches, and the compromise of application integrity.

You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just package-lock.json. You can also check your application for vulnerabilities using the Vulert playground at Vulert Scanner without any signup.

If you are using exec-less-request-cosmicweb, it is recommended to uninstall it immediately and look for alternative packages.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall exec-less-request-cosmicweb

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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