Malicious Code Injection in mass_ocelot_0xrequest Package
Summary
MAL-2025-105650: Malicious code in mass_ocelot_0xrequest (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The mass_ocelot_0xrequest package is part of the npm ecosystem, primarily used for various JavaScript applications. It is designed to facilitate certain functionalities within the npm registry. However, this package has been identified as part of a malicious campaign that floods the npm registry with derivative packages, which can compromise the integrity of applications relying on it.
Vulnerability Detail
The vulnerability originates from the mass_ocelot_0xrequest package being associated with a token reward campaign that exploits npm. The malicious code within this package 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, polluting the npm registry and potentially affecting applications that depend on this package. The ramifications include compromised application integrity, inflated developer reputation scores, and increased security risks.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mass_ocelot_0xrequestIf 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 remove the mass_ocelot_0xrequest package from your project by executing the following command: npm uninstall mass_ocelot_0xrequest. This will prevent any malicious code from executing until a secure version is available.
Conclusion
The mass_ocelot_0xrequest package has been identified as containing malicious code that can compromise applications using it. It is crucial for developers to take immediate action by updating or removing the package to ensure the security of their applications. Monitoring tools like Vulert can assist in identifying such vulnerabilities in real-time.
See every vulnerability recorded for mass_ocelot_0xrequest →
FAQ
It is an npm package used in JavaScript applications, but it has been identified as part of a malicious campaign.
The vulnerability can compromise your application's integrity by introducing malicious code that alters package configurations.
You should immediately update or uninstall the mass_ocelot_0xrequest package to mitigate the risks associated with this vulnerability.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just package-lock.json.
You can use the Vulert playground at Vulert Scanner to check if your application is affected without needing to sign up.
