Malicious Code Injection in tehah-cof-brew Package - npm Vulnerability
Summary
MAL-2025-168952: Malicious code in tehah-cof-brew (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The tehah-cof-brew package is part of the tea.xyz token reward campaign that has recently infiltrated the npm ecosystem. This package is designed to automate the generation and publication of derivative packages, which can mislead developers and inflate reputation scores for token rewards. Its functionality is compromised by malicious scripts that manipulate package metadata.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the tehah-cof-brew package. This code modifies the package.json file to remove 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 install 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 tehah-cof-brewIf 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 tehah-cof-brew package and any packages that depend on it. Regularly audit your package-lock.json file to identify any potentially vulnerable packages. You can also use tools like Vulert to monitor your dependencies for vulnerabilities.
Conclusion
The tehah-cof-brew package poses a significant risk due to its malicious code that alters package metadata and repopulates the npm registry with compromised variants. It is essential to remove this package from your projects and utilize tools like Vulert to monitor for vulnerabilities in real-time.
See every vulnerability recorded for tehah-cof-brew →
FAQ
The tehah-cof-brew package is part of a campaign that generates derivative npm packages to inflate developer reputation scores for token rewards.
The malicious code modifies your package.json file, potentially leading to security vulnerabilities and the installation of unwanted packages.
You should uninstall the package immediately using npm uninstall tehah-cof-brew and check for any dependencies that may be affected.
Yes, Vulert allows you to monitor and alert for open-source vulnerabilities in your software using just your package-lock.json file. You can check your application for vulnerabilities without signing up at the Vulert playground.
Regularly audit your dependencies, use tools like Vulert for real-time monitoring, and stay updated on security advisories related to the packages you use.
