Malicious Code Injection in motionless_mammal_dumbs Package

motionless_mammal_dumbs Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-105983: Malicious code in motionless_mammal_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The motionless_mammal_dumbs package is part of the npm ecosystem, which is widely used for JavaScript package management. This package has been identified as part of a malicious campaign that aims to exploit npm's publishing mechanisms. Its primary function is to facilitate the distribution of code, but it has been compromised to include harmful scripts that can manipulate package metadata and inflate developer reputation scores.

Vulnerability Detail

The vulnerability in the motionless_mammal_dumbs package originates from its association with the tea.xyz token reward campaign. It contains scripts that automatically modify the package.json file by removing private flags and altering version numbers. Additionally, it generates random package names and continuously republishes variants to pollute the npm registry. This can lead to significant security risks, including the potential for unauthorized access to sensitive data and the degradation of the npm ecosystem's integrity.

How To Fix

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

npm uninstall motionless_mammal_dumbs

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, you can prevent the installation of this malicious package by using npm's package-lock.json file to monitor dependencies. Ensure that your project does not include motionless_mammal_dumbs by reviewing your package-lock.json for any references to it and removing them.

Conclusion

The motionless_mammal_dumbs package poses a significant security risk due to its malicious code that alters package metadata and floods the npm registry. It is essential to remove this package from your project and monitor for any similar vulnerabilities to maintain the integrity of your software.

See every vulnerability recorded for motionless_mammal_dumbs →

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FAQ

It is an npm package that has been identified as part of a malicious campaign aimed at exploiting npm's publishing system.

The vulnerability can lead to unauthorized modifications of your package metadata, potentially compromising your project's security and integrity.

You should uninstall the motionless_mammal_dumbs package immediately and check for any other affected packages in your project.

Yes, you can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time without requiring code access.

Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.

How To Fix

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

npm uninstall motionless_mammal_dumbs

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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