Malicious Code Vulnerability in upper_fly_dumbs Package
Summary
MAL-2025-110206: Malicious code in upper_fly_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The upper_fly_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 not only clutters the npm registry but also poses significant security risks.
Vulnerability Detail
The vulnerability in the upper_fly_dumbs package stems from its malicious code that 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, which can pollute the npm registry and potentially compromise the integrity of other packages. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which has been associated with various malicious npm packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall upper_fly_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, consider removing the upper_fly_dumbs package from your project if it is not essential. You can do this by executing the command: npm uninstall upper_fly_dumbs. Additionally, monitor your package-lock.json file for any unauthorized changes.
Conclusion
The upper_fly_dumbs package contains a significant vulnerability due to its malicious code that alters package configurations and republishing behaviors. It is crucial to update or remove this package to maintain the integrity of your project and the npm ecosystem.
See every vulnerability recorded for upper_fly_dumbs →
FAQ
The upper_fly_dumbs package is part of a series of npm packages associated with the tea.xyz token reward campaign, designed to automate package publication.
The malicious code modifies your package.json file, removes private flags, and generates random package names, which can lead to security vulnerabilities and clutter in the npm registry.
Check the npm registry for any updated versions of the upper_fly_dumbs package that may contain a patch for this vulnerability.
You can use Vulert to monitor your project for open-source vulnerabilities in real-time by analyzing your package-lock.json file. Visit https://vulert.com for more information.
If affected, update the package to a patched version or remove it from your project. Regularly monitor your dependencies for any vulnerabilities.
