Malicious Code Detected in @rsgweb/locale-tools: Version 136.3.1 Vulnerability

@rsgweb/locale-tools Updated 06 Feb 2026

Summary

06/02/2026
CRITICAL
No i
Critical
Not published

MAL-2026-786: Malicious code in @rsgweb/locale-tools (npm). Affects @rsgweb/locale-tools versions 136.3.1. No fix is published. How to fix ↓

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Background

The package @rsgweb/locale-tools is an npm package designed for locale management in web applications. It provides tools for handling localization and internationalization, making it easier for developers to create applications that support multiple languages. However, version 136.3.1 has been flagged for malicious behavior, specifically for communicating with a domain linked to malicious activities, raising significant security concerns for users and developers relying on this package.

Vulnerability Detail

The vulnerability in @rsgweb/locale-tools arises from its version 136.3.1, which has been identified as malicious by the OpenSSF Package Analysis project. The package exhibits behavior that involves communication with a domain associated with malicious activities. This could potentially lead to data breaches, unauthorized access, or other security incidents, compromising the integrity and confidentiality of applications that utilize this package.

How To Fix

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

npm uninstall @rsgweb/locale-tools

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 @rsgweb/locale-tools package from your project if it is not essential. Use the following command to uninstall the package: npm uninstall @rsgweb/locale-tools. This will help mitigate the risk until a secure version is available.

Conclusion

The @rsgweb/locale-tools package version 136.3.1 has been identified as malicious due to its communication with a harmful domain. It is crucial for developers to update or remove this package to safeguard their applications. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.

See every vulnerability recorded for @rsgweb/locale-tools →

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FAQ

The package communicates with a domain associated with malicious activities, which poses a risk to applications using it.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without any signup.

Consider removing the package from your project as a temporary measure to reduce risk until a secure version is available.

Keep an eye on the official npm repository for @rsgweb/locale-tools for updates or subscribe to notifications for new releases.

Using the vulnerable version may lead to data breaches, unauthorized access, or other security incidents, compromising your application's integrity.

How To Fix

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

npm uninstall @rsgweb/locale-tools

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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