Malicious Code Injection in eastern_mule_dumbs Package - npm Vulnerability
Summary
MAL-2025-101858: Malicious code in eastern_mule_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The eastern_mule_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 the npm registry by flooding it with derivative packages. These packages are designed to inflate developer reputation scores through automated publishing scripts, which can lead to significant pollution of the npm registry.
Vulnerability Detail
The vulnerability stems from the malicious code embedded within the eastern_mule_dumbs package. This code modifies the package.json file by removing private flags, altering version numbers, and generating random package names. The primary goal is to continuously republish these variants, thereby compromising the integrity of the npm registry and potentially affecting developers who rely on these packages for legitimate purposes.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall eastern_mule_dumbsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can avoid using the eastern_mule_dumbs package and look for alternative packages that provide similar functionality without the associated risks. Additionally, regularly audit your dependencies using tools like npm audit to identify and mitigate vulnerabilities.
Conclusion
The eastern_mule_dumbs package poses a significant threat due to its malicious code designed to manipulate the npm registry. It is crucial for developers to remove this package and monitor their dependencies to maintain the security and integrity of their projects.
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FAQ
The eastern_mule_dumbs package is an npm package identified as part of a malicious campaign aimed at flooding the npm registry with derivative packages.
The malicious code can compromise your project's integrity by modifying package.json files and republishing variants, which can lead to dependency conflicts and security risks.
Yes, you can secure your project by removing the affected package and regularly auditing your dependencies for vulnerabilities.
You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time without requiring code access or installation.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
