Malicious Code Injection in comparative_sloth_replicate_automation Package

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-100748: Malicious code in comparative_sloth_replicate_automation (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 comparative_sloth_replicate_automation package is part of the npm ecosystem, primarily used for automation tasks related to comparative analysis. However, it has been identified as part of a malicious campaign that exploits npm's publishing capabilities. This package, like others in the campaign, is designed to inflate developer reputation scores through the automatic generation and publication of derivative packages.

Vulnerability Detail

The vulnerability originates from the package being associated with a token reward campaign that floods the npm registry with malicious packages. These packages contain scripts that modify the package.json file to remove private flags, alter version numbers, and generate random package names. This behavior leads to pollution of the npm registry and can compromise the integrity of applications relying on these packages.

How To Fix

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

npm uninstall comparative_sloth_replicate_automation

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 avoid using the comparative_sloth_replicate_automation package until a secure version is released. Additionally, you can monitor your package dependencies using tools like Vulert, which analyzes your package-lock.json file for vulnerabilities.

Conclusion

The comparative_sloth_replicate_automation package is compromised with malicious code that can affect the integrity of applications. It is crucial to update or remove the package to safeguard your project. Utilizing tools like Vulert can help monitor and alert you about vulnerabilities in real-time.

See every vulnerability recorded for comparative_sloth_replicate_automation →

Share this vulnerability

FAQ

It is an npm package used for automation tasks related to comparative analysis but has been compromised with malicious code.

The vulnerability can lead to the pollution of the npm registry and potentially compromise the integrity of your application if it relies on this package.

You should update the package to a patched version if available or remove it from your project to mitigate the risk.

You can use Vulert, which analyzes your package-lock.json file to alert you in real-time about open-source vulnerabilities.

Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.

How To Fix

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

npm uninstall comparative_sloth_replicate_automation

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