Malicious Code Injection in cuddly_roadrunner_dumbs Package

cuddly_roadrunner_dumbs Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-101139: Malicious code in cuddly_roadrunner_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The cuddly_roadrunner_dumbs package is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to automate the generation and publication of derivative packages, often with randomized names, to inflate developer reputation scores for token rewards. This behavior poses significant risks to the integrity of the npm registry and the security of applications that depend on these packages.

Vulnerability Detail

The vulnerability in the cuddly_roadrunner_dumbs package stems from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, effectively polluting the npm registry. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which exploits npm's publishing mechanisms for malicious purposes. The ramifications include potential security breaches, dependency confusion, and the risk of introducing harmful code into applications that rely on these packages.

How To Fix

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

npm uninstall cuddly_roadrunner_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 workaround, you can avoid using the cuddly_roadrunner_dumbs package and any other packages associated with the tea.xyz token reward campaign. Regularly audit your dependencies using tools like Vulert, which monitors and alerts for open-source vulnerabilities in real-time. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without any signup.

Conclusion

The cuddly_roadrunner_dumbs package poses a significant security risk due to its malicious code designed to manipulate npm's publishing system. It is crucial for developers to remove this package and monitor their dependencies for similar vulnerabilities. Utilizing tools like Vulert can help maintain the security of your applications.

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FAQ

It is an npm package that is part of a malicious campaign aimed at inflating developer reputation scores through automated publishing of derivative packages.

The vulnerability can lead to the introduction of malicious code into your application, potentially compromising its security and integrity.

You should uninstall the cuddly_roadrunner_dumbs package immediately and audit your dependencies for any other malicious packages.

You can use Vulert, which monitors your package-lock.json file for open-source vulnerabilities and alerts you in real-time.

Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without requiring an account.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

How To Fix

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

npm uninstall cuddly_roadrunner_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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