Malicious Code Injection in utomo-sego91-riris: A Threat to npm Users
Summary
MAL-2025-91638: Malicious code in utomo-sego91-riris (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'utomo-sego91-riris' is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to generate and publish derivative packages with randomized names, which can inflate developer reputation scores for token rewards. Its functionality is compromised due to the presence of malicious code that modifies critical files, posing a significant risk to users.
Vulnerability Detail
The vulnerability in 'utomo-sego91-riris' originates from its association with a malicious campaign that floods the npm registry with derivative packages. The malicious payload alters the package.json file by removing private flags, changing version numbers, and generating random package names. This behavior leads to the pollution of the npm registry and can compromise the integrity of applications relying on this package.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall utomo-sego91-ririsIf 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 'utomo-sego91-riris' package and look for alternative packages that provide similar functionality without the associated risks. Additionally, regularly monitor your package-lock.json file for any unauthorized changes.
Conclusion
The 'utomo-sego91-riris' package poses a significant threat due to its malicious code that alters essential files and pollutes the npm registry. It is crucial for developers to remove this package and monitor their applications for vulnerabilities to maintain security.
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FAQ
It is an npm package associated with a token reward campaign that has been identified to contain malicious code.
The vulnerability can lead to unauthorized modifications in your package.json file and the proliferation of malicious packages in your npm registry.
You should uninstall the package immediately and check for any dependencies that may have been affected.
Yes, you can use Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time without requiring code access.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without signing up.
