Prototype Pollution in deap

deap Updated 02 Oct 2025

Summary

31/05/2019
HIGH
Yes i
High
7.3

GHSA-xrmp-99wj-p6jc: Prototype Pollution in deap. Affects deap versions < 1.0.1. Fixed in 1.0.1. How to fix ↓

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Background

deap is an npm package that provides a framework for evolutionary algorithms in Python. It is used for solving optimization problems by simulating the process of natural selection. The package offers various features and utilities for creating and manipulating genetic algorithms. However, versions of deap before 1.0.1 are vulnerable to prototype pollution.

Vulnerability Detail

Prototype pollution is a vulnerability that occurs when an attacker can inject properties into existing objects. In the case of deap, this vulnerability allows an attacker to modify the prototype of objects, leading to unexpected behavior and potential security issues. The impact of this vulnerability can range from data integrity issues to remote code execution.

How To Fix

Latest published version: 1.0.1 as of 23 Oct 2026

npm install deap@1.0.1

The newest release already contains this fix.

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Conclusion

Prototype pollution in deap can lead to unexpected behavior and potential security issues. It is crucial to update deap to version 1.0.1 or later to mitigate the risk. For further support on vulnerability remediation, you can reach out to DevNack.com.

See every vulnerability recorded for deap →

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FAQ

Prototype pollution is a vulnerability that allows an attacker to modify the prototype of objects, leading to unexpected behavior and potential security issues.

The impact of this vulnerability can range from data integrity issues to remote code execution, depending on how it is exploited.

You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities, including this one.

Unfortunately, there is no known workaround for this vulnerability. It is recommended to update deap to the latest version to mitigate the risk.

Related vulnerabilities

Recent vulnerabilities recorded for deap.

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How To Fix

Latest published version: 1.0.1 as of 23 Oct 2026

npm install deap@1.0.1

The newest release already contains this fix.

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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