Malicious Code Injection in jelek-r-anime: A Threat to npm Users
Summary
MAL-2025-157029: Malicious code in jelek-r-anime (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'jelek-r-anime' is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to manipulate the npm registry by generating and publishing derivative packages with randomized names. The primary function of these packages is to inflate developer reputation scores for token rewards, making them a significant concern for the integrity of the npm ecosystem.
Vulnerability Detail
The vulnerability in 'jelek-r-anime' 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 pollutes the npm registry and can compromise the security and reliability of applications relying on these packages. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which has been associated with numerous malicious packages flooding the npm ecosystem.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall jelek-r-animeIf 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 'jelek-r-anime' and any other packages associated with the tea.xyz campaign. Instead, look for alternative packages that provide similar functionality without the associated risks.
Conclusion
The 'jelek-r-anime' package poses a significant threat to the npm ecosystem due to its malicious code that modifies package metadata and repopulates the registry with harmful variants. Users are advised to uninstall this package and monitor their dependencies for vulnerabilities.
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FAQ
'jelek-r-anime' is an npm package that is part of a malicious campaign aimed at inflating developer reputation scores through the creation of derivative packages.
The vulnerability can lead to the pollution of the npm registry, potentially introducing malicious code into your application and compromising its security.
You should uninstall 'jelek-r-anime' immediately and check your project for any other potentially malicious packages.
You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time. You can also check your application using the Vulert playground without any signup.
No, there is no patch available for 'jelek-r-anime'. The best course of action is to remove the package entirely.
