Malicious Code Injection in syahlan-poke77: A Threat to npm Ecosystem

syahlan-poke77 Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-166580: Malicious code in syahlan-poke77 (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The package 'syahlan-poke77' is part of the npm ecosystem, which is widely used for JavaScript package management. This package has been identified as part of a malicious campaign that aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of this package compromises the integrity of the npm registry and poses risks to developers who may unknowingly use it.

Vulnerability Detail

The vulnerability in 'syahlan-poke77' originates from its association with a token reward campaign that floods the npm registry with malicious packages. The package contains scripts designed to modify the package.json file by removing private flags, altering version numbers, and generating random package names. This results in the continuous republishing of variants, which pollutes the npm registry and can lead to security risks for developers relying on these packages.

How To Fix

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

npm uninstall syahlan-poke77

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 use the following command to check for any dependencies that may be affected by this malicious package: 'npm ls syahlan-poke77'. If found, ensure to remove it and replace it with a trusted alternative.

Conclusion

The 'syahlan-poke77' package poses a significant threat to the npm ecosystem due to its malicious code designed to manipulate package metadata and flood the registry. It is crucial for developers to remove this package from their projects and utilize tools like Vulert to monitor for vulnerabilities in their applications.

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FAQ

'syahlan-poke77' is an npm package identified as part of a malicious campaign to inflate developer reputation scores through the automatic generation of derivative packages.

Using 'syahlan-poke77' can compromise your project's integrity by introducing malicious code that modifies your package.json and floods the npm registry with unwanted packages.

You should uninstall 'syahlan-poke77' immediately using the command 'npm uninstall syahlan-poke77' to mitigate any potential risks.

Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just package-lock.json. You can check if your application is affected by visiting the Vulert playground.

No, 'syahlan-poke77' is known to be a malicious package and should be removed rather than patched.

How To Fix

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

npm uninstall syahlan-poke77

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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