Malicious Code Injection in misty_basilisk-silentdev Package

misty_basilisk-silentdev Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-105900: Malicious code in misty_basilisk-silentdev (npm). Affected versions are not published. No fix is published. How to fix ↓

Free scan

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.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Devnack Penetration testing for web, API and mobile Manual testing by engineers who build software, not an auditor's checklist. Trusted by teams at Swift and Google Talk to Devnack

Background

The misty_basilisk-silentdev package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publishing of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises its integrity and the security of the npm registry.

Vulnerability Detail

The vulnerability in the misty_basilisk-silentdev package originates from its association with a campaign that floods the npm registry with malicious packages. The malicious payload modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the continuous republishing of 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 misty_basilisk-silentdev

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, you can avoid using the misty_basilisk-silentdev package altogether and look for alternative packages that provide similar functionality without the associated risks. Always review the package's reputation and community feedback before integrating it into your project.

Conclusion

The misty_basilisk-silentdev package poses a significant security risk due to its malicious code that modifies package configurations and floods the npm registry. It is essential to remove this package from your projects and utilize tools like Vulert to monitor for vulnerabilities in your dependencies.

See every vulnerability recorded for misty_basilisk-silentdev →

Share this vulnerability

FAQ

It is an npm package associated with a token reward campaign that has been identified as containing malicious code.

The malicious code can modify your package.json file and lead to the republishing of compromised packages, potentially compromising your application's security.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without needing to sign up.

You should uninstall the misty_basilisk-silentdev package immediately and review your project's dependencies for any other potentially compromised packages.

Yes, consider looking for other npm packages that provide similar functionality but have a better reputation and do not exhibit malicious behavior.

How To Fix

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

npm uninstall misty_basilisk-silentdev

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 →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback