Malicious Code Injection in colossal_capybara_z3n: A Threat to npm Packages
Summary
MAL-2025-93623: Malicious code in colossal_capybara_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package colossal_capybara_z3n is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to manipulate the npm registry by generating and publishing numerous derivative packages with randomized names. This behavior is primarily aimed at inflating developer reputation scores for token rewards, making it a significant concern for developers relying on npm for package management.
Vulnerability Detail
The vulnerability in colossal_capybara_z3n originates 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 not only pollutes the npm registry but also poses a risk of unintentional dependency on compromised packages, potentially leading to security breaches in applications that utilize them.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall colossal_capybara_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 colossal_capybara_z3n package and replace it with a trusted alternative. Additionally, you can monitor your package-lock.json file for any unauthorized changes, which may indicate the presence of malicious packages.
Conclusion
The colossal_capybara_z3n package poses a significant threat due to its malicious code that alters package metadata and floods the npm registry. It is crucial for developers to be vigilant and remove any affected packages to maintain the security of their applications. Utilizing tools like Vulert can aid in monitoring for such vulnerabilities effectively.
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FAQ
colossal_capybara_z3n is an npm package that has been identified as part of a malicious campaign aimed at manipulating the npm registry.
The vulnerability can lead to the inclusion of malicious code in your application, potentially compromising its security and integrity.
You should uninstall the colossal_capybara_z3n package immediately and monitor your project for any unauthorized changes.
Yes, tools like Vulert can help monitor and alert you in real-time for open-source vulnerabilities in your software without requiring access to the code.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
