Malicious Code Injection in outer_warbler_dumbs Package - npm Vulnerability
Summary
MAL-2025-106833: Malicious code in outer_warbler_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The outer_warbler_dumbs package is part of the npm ecosystem, which is widely used for managing JavaScript packages. This package has been identified as part of a malicious campaign that aims to exploit the npm registry by generating and publishing numerous derivative packages. These packages are designed to inflate developer reputation scores for token rewards, specifically for the tea.xyz protocol. The malicious nature of this package compromises the integrity of the npm registry and can lead to further exploitation.
Vulnerability Detail
The vulnerability in the outer_warbler_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, altering version numbers, and generating random package names. This behavior leads to the continuous republishing of variants, which pollutes the npm registry and can potentially allow attackers to execute further malicious actions on affected systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall outer_warbler_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 remove the outer_warbler_dumbs package from your project by executing the following command: npm uninstall outer_warbler_dumbs. Additionally, ensure that your package-lock.json file is monitored for any unauthorized changes.
Conclusion
The outer_warbler_dumbs package poses a significant risk due to its malicious code that alters package metadata and floods the npm registry. It is crucial for developers to take immediate action by updating or removing the package to safeguard their applications.
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FAQ
The outer_warbler_dumbs package is an npm package that has been identified as part of a malicious campaign to exploit the npm registry.
This vulnerability can lead to unauthorized modifications in your package.json file and potentially allow for further exploitation of your application.
You should update the package to a patched version if available or remove it from your project to mitigate the risk.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
