Malicious Code Detected in @client-web-next/timer Package - Security Alert

@client-web-next/timer Updated 24 Sep 2026

Summary

22/09/2026
CRITICAL
No i
Critical
Not published

MAL-2026-16509: Malicious code in @client-web-next/timer (npm). Affects @client-web-next/timer versions 0.0.1. No fix is published. How to fix ↓

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Background

The @client-web-next/timer package is a JavaScript library used in web applications to manage timers and scheduling tasks. It is part of the npm ecosystem, which allows developers to easily integrate it into their projects. However, this package has been identified as containing malicious code, posing significant security risks to applications that utilize it.

Vulnerability Detail

The vulnerability in the @client-web-next/timer package stems from the inclusion of malicious code that can compromise the security of applications using this library. This code may allow unauthorized access to sensitive data or enable remote code execution, leading to potential data breaches or system compromises. The malicious code was identified by ReversingLabs, highlighting the importance of scrutinizing third-party packages for security vulnerabilities.

How To Fix

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

npm uninstall @client-web-next/timer

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, you can remove the @client-web-next/timer package from your project by executing: npm uninstall @client-web-next/timer. This will prevent any potential exploitation of the malicious code until a fix is provided.

Conclusion

The @client-web-next/timer package has been flagged for containing malicious code, which poses significant security risks to applications that utilize it. Users are advised to update or remove the package to safeguard their applications. Regular monitoring for vulnerabilities using tools like Vulert can help maintain application security.

See every vulnerability recorded for @client-web-next/timer →

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FAQ

The malicious code can potentially allow unauthorized access to sensitive data or enable remote code execution, posing serious security risks.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.

If an immediate update is not possible, consider removing the package from your project as a temporary measure to mitigate risks.

The vulnerability was discovered by ReversingLabs, a cybersecurity firm specializing in identifying malicious packages.

Currently, there is no patched version available for the @client-web-next/timer package. It is advisable to monitor for updates from the package maintainers.

How To Fix

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

npm uninstall @client-web-next/timer

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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