Critical Malicious Code Vulnerability in @shenira/baileys Package

@shenira/baileys Updated 06 Mar 2026

Summary

06/03/2026
CRITICAL
No i
Critical
Not published

MAL-2026-1266: Malicious code in @shenira/baileys (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The @shenira/baileys package is an npm library designed for building applications that interact with the Baileys WhatsApp Web API. It provides developers with tools to send messages, manage contacts, and perform various operations on the WhatsApp platform. However, this package has been identified to contain malicious code that compromises the security of any system it is installed on.

Vulnerability Detail

The vulnerability originates from the inclusion of malicious code within the @shenira/baileys package. This code can fully compromise any computer that has the package installed, allowing unauthorized access to sensitive information such as secrets and keys. The ramifications of this vulnerability are severe, as it may lead to data breaches and unauthorized control over the affected systems. Users are advised to treat any system with this package as compromised and take immediate action.

How To Fix

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

npm uninstall @shenira/baileys

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

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Workaround

As a workaround, if you need to continue using similar functionality, consider using alternative packages that provide similar capabilities without the associated risks. Always verify the integrity and security of third-party packages before installation.

Conclusion

The discovery of malicious code within the @shenira/baileys package poses a significant threat to users and their systems. Immediate action is required to mitigate risks, including uninstalling the package and securing sensitive information. Continuous monitoring and using tools like Vulert can help prevent future vulnerabilities.

See every vulnerability recorded for @shenira/baileys →

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FAQ

Immediately uninstall the package using npm uninstall @shenira/baileys and rotate any sensitive information stored on the affected system.

You can use Vulert's playground at Vulert Scanner to check if your application is affected without requiring any signup.

Failing to remove the package may lead to unauthorized access to your system, data breaches, and potential control by malicious entities.

Always review and monitor the packages you use, and consider using tools like Vulert to alert you of open-source vulnerabilities in real-time.

While many npm packages are safe, it's essential to verify their integrity and check for vulnerabilities regularly to ensure your application's security.

How To Fix

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

npm uninstall @shenira/baileys

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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