Malicious Code Injection in peaceful_cow_0xrequest Package

peaceful_cow_0xrequest Updated 18 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-107009: Malicious code in peaceful_cow_0xrequest (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The peaceful_cow_0xrequest package is part of the npm ecosystem, typically used for various JavaScript applications. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with malicious packages. This package, like others in the campaign, is designed to manipulate developer reputation scores through automated publishing scripts.

Vulnerability Detail

The vulnerability in peaceful_cow_0xrequest arises from its malicious payload that modifies the package.json file. It removes private flags, alters version numbers, and generates random package names, leading to the continuous republishing of these variants. This behavior not only pollutes the npm registry but also poses a risk to developers who may unknowingly use these compromised packages, potentially leading to security breaches in their applications.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall peaceful_cow_0xrequest

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a workaround, avoid using the peaceful_cow_0xrequest package and consider using alternative packages that provide similar functionality without the associated risks. Always verify the integrity of packages before installation.

Conclusion

The peaceful_cow_0xrequest package contains a significant vulnerability that can lead to malicious code injection. It is crucial for developers to remove this package from their projects and monitor their applications for any potential security issues. Utilizing tools like Vulert can aid in maintaining the security of your software.

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FAQ

It is an npm package associated with the tea.xyz token reward campaign, known for containing malicious code.

The vulnerability can lead to the injection of malicious code, compromising the security of your application and potentially affecting its functionality.

You should uninstall the package immediately and check your application for any signs of compromise.

Yes, tools like Vulert can monitor your package-lock.json file to alert you in real-time for open-source vulnerabilities.

Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall peaceful_cow_0xrequest

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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