Critical Malicious Code Vulnerability in @wanzlonelyy/bailslonely Package

@wanzlonelyy/bailslonely Updated 12 Oct 2026

Summary

12/10/2026
CRITICAL
No i
Critical
Not published

MAL-2026-17840: Malicious code in @wanzlonelyy/bailslonely (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 @wanzlonelyy/bailslonely package is an npm library that may be used for various functionalities in JavaScript applications. However, it has been identified as containing malicious code that compromises the security of any system where it is installed. This vulnerability poses a significant risk to developers and organizations relying on this package for their projects.

Vulnerability Detail

The vulnerability originates from the presence of embedded malicious code within the @wanzlonelyy/bailslonely package. Any computer that has this package installed is considered fully compromised, with all secrets and keys potentially exposed to unauthorized entities. The malicious code can lead to severe ramifications, including data breaches and loss of control over the affected system. Users are advised to treat the installation of this package as a critical security incident.

How To Fix

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

npm uninstall @wanzlonelyy/bailslonely

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

There are no effective workarounds for this vulnerability other than removing the package entirely. Ensure that you have a backup of your project and any necessary dependencies before proceeding with the uninstallation.

Conclusion

The @wanzlonelyy/bailslonely package has been identified as containing malicious code that poses a significant security risk. Immediate action is required to uninstall the package and secure any compromised systems. Regular monitoring of dependencies is essential to prevent similar vulnerabilities in the future.

See every vulnerability recorded for @wanzlonelyy/bailslonely →

Share this vulnerability

FAQ

Immediately uninstall the package using npm uninstall @wanzlonelyy/bailslonely and rotate any secrets or keys stored on the affected system.

You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.

The risks include potential data breaches, loss of sensitive information, and complete compromise of the affected system.

Regularly monitor your dependencies for vulnerabilities using tools like Vulert, which can alert you in real-time for open-source vulnerabilities.

It is advisable to review the security of any package before installation, especially those from authors with known vulnerabilities.

How To Fix

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

npm uninstall @wanzlonelyy/bailslonely

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