Malicious Code Injection in jelek-ras-batuba: A Threat to npm Users
Summary
MAL-2025-157034: Malicious code in jelek-ras-batuba (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
jelek-ras-batuba is an npm package that has been identified as part of a malicious campaign targeting the npm registry. This package is associated with the tea.xyz token reward initiative, which has been known to flood the npm ecosystem with harmful packages. The primary function of this package, like others in the campaign, is to manipulate the npm registry by generating and publishing derivative packages that can inflate developer reputation scores for token rewards.
Vulnerability Detail
The vulnerability in jelek-ras-batuba stems from its malicious payload that modifies the package.json file by removing private flags and altering version numbers. It generates random Indonesian-themed package names and continuously republishes these variants, leading to pollution of the npm registry. This behavior can compromise the integrity of the npm ecosystem, making it difficult for developers to trust the packages they use.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall jelek-ras-batubaIf 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 jelek-ras-batuba package and any other packages that are part of the tea.xyz campaign. You can also use the following command to audit your npm packages for vulnerabilities: npm audit.
Conclusion
The jelek-ras-batuba package poses a significant threat to the npm ecosystem due to its malicious behavior. It is crucial for developers to be vigilant and remove any affected packages from their projects. Regular monitoring and auditing of dependencies can help maintain the security of your applications.
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FAQ
jelek-ras-batuba is an npm package identified as part of a malicious campaign that manipulates the npm registry.
The vulnerability can compromise the integrity of your project by introducing malicious code and polluting the npm registry.
You should uninstall the package immediately using the command npm uninstall jelek-ras-batuba.
You can use tools like Vulert, which monitors and alerts for open-source vulnerabilities in real-time using your package-lock.json.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.
