Malicious Code Injection in mild_sloth_0xrequest: A Threat to npm Packages

mild_sloth_0xrequest Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-105839: Malicious code in mild_sloth_0xrequest (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 Your last release was probably never penetration tested Manual testing by engineers who build software, not an auditor's checklist. Trusted by teams at Swift and Google Talk to Devnack

Background

The package 'mild_sloth_0xrequest' is part of the npm ecosystem, which is widely used for JavaScript package management. This package is associated with the tea.xyz token reward campaign, which has been linked to a series of malicious activities aimed at inflating developer reputation scores. The package's functionality is compromised by the presence of malicious scripts that manipulate its metadata and behavior.

Vulnerability Detail

The vulnerability in 'mild_sloth_0xrequest' originates from its association with a malicious campaign that floods the npm registry with derivative packages. The malicious code 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 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 mild_sloth_0xrequest

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 temporary workaround, you can remove the 'mild_sloth_0xrequest' package from your project by executing: 'npm uninstall mild_sloth_0xrequest'. This will prevent any malicious code from executing until a safe version is available.

Conclusion

The 'mild_sloth_0xrequest' package is compromised by malicious code that alters its behavior and metadata, posing significant risks to developers. It is crucial to update or remove the package to safeguard your applications. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.

See every vulnerability recorded for mild_sloth_0xrequest →

Share this vulnerability

FAQ

The malicious code is designed to modify the package's metadata and continuously publish variants to the npm registry, which can lead to security risks for developers.

You can use Vulert, which monitors open-source vulnerabilities in your software using just the package-lock.json file. Visit Vulert Scanner to check if your application is affected without any signup.

If immediate updates are not possible, consider uninstalling the package as a temporary measure to mitigate risks until a safe version is available.

While specific exploits have not been detailed, the nature of the vulnerability allows for potential misuse, including unauthorized access to developer environments.

Regularly audit your dependencies, use tools like Vulert for real-time monitoring, and stay updated with security advisories from package maintainers.

How To Fix

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

npm uninstall mild_sloth_0xrequest

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