Malicious Code Injection in above_earthworm_z3n Package: A Threat to npm Users
Summary
MAL-2025-93068: Malicious code in above_earthworm_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The above_earthworm_z3n package is part of the npm ecosystem, often used in JavaScript applications. It was identified as part of a malicious campaign that aimed to exploit npm's package publishing system. This package, like others in the campaign, is designed to inflate developer reputation scores through the automatic generation and publication of derivative packages with randomized names.
Vulnerability Detail
The vulnerability originates from the malicious code embedded within the above_earthworm_z3n package. This code modifies the package.json file by removing private flags, altering version numbers, and generating random package names. The primary risk is that it can lead to the pollution of the npm registry with numerous derivative packages, potentially compromising the integrity of applications that depend on npm packages. The malicious behavior is part of a broader scheme to manipulate the npm ecosystem for token rewards.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall above_earthworm_z3nIf 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 above_earthworm_z3n package and any other packages that are part of the malicious campaign. Regularly audit your package dependencies using tools like npm audit to identify and mitigate vulnerabilities.
Conclusion
The above_earthworm_z3n 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 remove this package and monitor their dependencies for vulnerabilities to maintain application security.
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FAQ
The above_earthworm_z3n package is an npm package that has been identified as part of a malicious campaign aimed at manipulating the npm registry.
The malicious code modifies your package.json file and can lead to the generation of numerous unwanted packages, potentially compromising your application's integrity.
You should uninstall the above_earthworm_z3n package immediately and check for any other affected packages in your project.
Yes, you can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Habilume
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Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
