Malicious Code Injection in helpless_salmon-tool: A Threat to npm Users

helpless_salmon-tool Updated 24 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-103646: Malicious code in helpless_salmon-tool (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The 'helpless_salmon-tool' is an npm package that has been identified as part of a malicious campaign targeting the npm registry. This package is designed to automate the generation and publication of derivative packages, often with random names, to inflate developer reputation scores for token rewards. Its functionality is compromised by the presence of malicious scripts that alter package metadata and republish variants, leading to potential pollution of the npm ecosystem.

Vulnerability Detail

The vulnerability in 'helpless_salmon-tool' originates from its association with the tea.xyz token reward campaign. The malicious payload embedded in the package modifies the package.json file by removing private flags, changing version numbers, and generating random package names. This behavior not only compromises the integrity of the package but also poses a risk to developers who may unknowingly install these malicious variants, leading to potential security breaches and reputation damage.

How To Fix

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

npm uninstall helpless_salmon-tool

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

As a temporary workaround, you can avoid using the 'helpless_salmon-tool' package altogether. If it is already part of your project, consider replacing it with a similar, reputable package that serves the same purpose without the associated risks.

Conclusion

The 'helpless_salmon-tool' package poses a significant risk due to its malicious code designed to manipulate package metadata and inflate developer reputation scores. It is crucial for developers to remove this package from their projects and utilize tools like Vulert to monitor for vulnerabilities in real-time. Staying informed and vigilant is key to maintaining the security of your software.

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FAQ

It is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores through automated publishing of derivative packages.

The vulnerability can lead to the installation of malicious packages that may compromise your project's security and integrity, potentially leading to data breaches or other security incidents.

You should immediately uninstall the 'helpless_salmon-tool' package using 'npm uninstall helpless_salmon-tool' and review your project for any other potentially compromised packages.

Yes, tools like Vulert can monitor your project for open-source vulnerabilities in real-time using just the package-lock.json file. You can check your application for vulnerabilities without any signup at the Vulert playground.

Regularly audit your dependencies, use trusted sources for packages, and consider using automated tools like Vulert to monitor for vulnerabilities in your open-source software.

How To Fix

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

npm uninstall helpless_salmon-tool

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 →

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