Critical Malicious Code Vulnerability in couplus-cli Package

couplus-cli Updated 20 Mar 2026

Summary

20/03/2026
CRITICAL
No i
Critical
Not published

MAL-2026-1944: Malicious code in couplus-cli (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The couplus-cli package is a command-line interface tool designed for various functionalities within the npm ecosystem. It is commonly used by developers for managing and executing tasks related to Node.js applications. However, this package has been identified as containing malicious code, posing significant security risks to any system where it is installed.

Vulnerability Detail

The vulnerability stems from the presence of embedded malicious code within the couplus-cli package. This code can compromise any computer that has the package installed, allowing unauthorized access and control to external entities. The implications of this vulnerability are severe, as it can lead to the exposure of sensitive information, including secrets and keys stored on the affected system. Users are advised to treat any system running this package as fully compromised.

How To Fix

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

npm uninstall couplus-cli

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 workaround, users should rotate all secrets and keys stored on the affected computer from a different, secure machine. This step is essential to mitigate the risks associated with potential unauthorized access.

Conclusion

The couplus-cli package has been identified as containing malicious code, posing a significant security risk. Immediate removal of the package and rotation of sensitive information are essential steps to mitigate the impact of this vulnerability. Users are encouraged to monitor their open-source packages for vulnerabilities using tools like Vulert.

See every vulnerability recorded for couplus-cli →

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FAQ

The couplus-cli package is a command-line interface tool used in the npm ecosystem for managing tasks related to Node.js applications.

If you have the couplus-cli package installed, your system is considered compromised. You should take immediate action to remove the package and rotate any sensitive information.

After removal, it is crucial to rotate all secrets and keys stored on the affected computer to prevent unauthorized access.

Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.

Failing to address this vulnerability can lead to unauthorized access to your system, potential data breaches, and the compromise of sensitive information.

How To Fix

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

npm uninstall couplus-cli

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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