Malicious Code Injection in uninterested_silverfish_z3n Package
Summary
MAL-2025-110132: Malicious code in uninterested_silverfish_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The uninterested_silverfish_z3n package is part of the npm ecosystem, often associated with token reward campaigns. It is designed to facilitate the generation and publication of derivative packages, which can inflate developer reputation scores. However, this package has been identified as malicious, containing scripts that manipulate package metadata.
Vulnerability Detail
The vulnerability originates from the package's malicious scripts that modify the package.json file by removing private flags, altering version numbers, and generating random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially compromising the integrity of other packages. The malicious nature of this package poses significant risks to developers and users relying on npm for secure package management.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall uninterested_silverfish_z3nIf 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 temporary measure, you can avoid using the uninterested_silverfish_z3n package and look for alternative packages that provide similar functionality without the associated risks. Additionally, regularly audit your dependencies to ensure no malicious packages are included.
Conclusion
The uninterested_silverfish_z3n package poses a significant security risk due to its malicious code that alters package metadata and republishing behavior. It is crucial to remove this package from your projects and utilize tools like Vulert to monitor for vulnerabilities in your dependencies.
See every vulnerability recorded for uninterested_silverfish_z3n →
FAQ
It is an npm package that has been identified as malicious, designed to manipulate package metadata and inflate developer reputation scores.
The vulnerability can lead to the pollution of the npm registry and compromise the integrity of your project's dependencies, potentially introducing security risks.
You should uninstall the package immediately using the command npm uninstall uninterested_silverfish_z3n and check for any dependencies that may be affected.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software by analyzing the package-lock.json file. You can check your application for vulnerabilities using the Vulert playground at Vulert Scanner.
Regularly audit your dependencies, use trusted sources for packages, and consider using tools like Vulert to monitor for vulnerabilities in real-time.
