Malicious Code Detected in add-dictionary Package - Security Alert

add-dictionary Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-14069: Malicious code in add-dictionary (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The add-dictionary package is an npm library designed to provide a set of predefined dictionaries for various applications. It is commonly used in projects that require text processing or natural language processing functionalities. However, this package has been identified to contain malicious code, posing a significant security risk to users who integrate it into their applications.

Vulnerability Detail

The vulnerability stems from the presence of malicious code within the add-dictionary 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 issue was introduced in version 0 and affects all subsequent versions, making it critical for users to take immediate action to mitigate risks.

How To Fix

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

npm uninstall add-dictionary

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 measure, users can avoid using the add-dictionary package and implement custom dictionary solutions or explore other reputable packages that offer similar functionalities without the associated risks.

Conclusion

The discovery of malicious code in the add-dictionary package poses a serious threat to users and their applications. Immediate action is required to remove the package and replace it with a secure alternative to safeguard against potential security breaches.

See every vulnerability recorded for add-dictionary →

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FAQ

The add-dictionary package is an npm library used to provide predefined dictionaries for text processing and natural language applications.

The specific nature of the malicious code has not been disclosed, but it poses significant security risks, including potential unauthorized access and data breaches.

You can use Vulert to monitor and alert for open-source vulnerabilities in your software. By analyzing your package-lock.json file, Vulert can help you identify if your application is affected by this vulnerability.

The best way to mitigate risks is to remove the add-dictionary package and replace it with a secure alternative. There are no safe workarounds for this vulnerability.

Detailed information about this vulnerability can be found in the official GitHub repository of the add-dictionary package and through security advisories.

How To Fix

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

npm uninstall add-dictionary

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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