CVE-2020-8124: Improper Validation and Sanitization in url-parse

url-parse Updated 02 Oct 2025

Summary

06/01/2022
Yes i
Moderate
5.3

CVE-2020-8124: Improper Validation and Sanitization in url-parse. Affects url-parse versions < 1.4.5. Fixed in 1.4.5. How to fix ↓

Also tracked for

The same CVE-2020-8124 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.

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Background

The url-parse npm package is a library used for parsing URLs in JavaScript applications. It provides functionality to extract various components of a URL such as the protocol, hostname, path, query parameters, etc. This package is widely used in web development projects to handle URL manipulation and parsing. However, versions 1.4.4 and earlier of the url-parse package suffer from an insufficient validation and sanitization vulnerability, which can allow an attacker to bypass security checks.

Vulnerability Detail

The vulnerability in the url-parse package arises from the lack of proper validation and sanitization of user input. This can lead to various security issues, such as injection attacks or bypassing security checks. An attacker could potentially manipulate the input URL to execute malicious code or access sensitive information. The impact of this vulnerability can vary depending on how the package is used within an application, but it has the potential to compromise the security and integrity of the system.

How To Fix

Latest published version: 1.5.10 as of 22 Oct 2026

npm install url-parse@1.5.10

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.4.5

This is the first release that contains the fix.

npm install url-parse@1.4.5

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Workaround

If updating the package is not immediately feasible, a temporary workaround can be implemented by implementing additional input validation and sanitization measures in the application code. This can involve using regular expressions or other validation techniques to ensure that the input URL is properly formatted and does not contain any malicious or unexpected characters. However, this workaround is not a permanent solution and should be seen as a temporary measure until the package can be updated.

Conclusion

The url-parse npm package version 1.4.4 and earlier is vulnerable to an insufficient validation and sanitization issue. This vulnerability can be mitigated by updating the package to version 1.4.5 or later. In the meantime, developers can implement additional input validation and sanitization measures as a temporary workaround. For further support and assistance with vulnerability remediation, please contact DevNack.com.

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FAQ

The url-parse npm package is a JavaScript library used for parsing and manipulating URLs in web development projects.

The vulnerability in the url-parse package can allow an attacker to bypass security checks and potentially execute malicious code or access sensitive information.

To fix this vulnerability, it is recommended to update the url-parse package to version 1.4.5 or later.

If updating the package is not immediately feasible, additional input validation and sanitization measures can be implemented in the application code as a temporary workaround.

For more information about this vulnerability, you can refer to the CVE-2020-8124 advisory or the GitHub Security Advisory GHSA-46c4-8wrp-j99v.

Related vulnerabilities

Recent vulnerabilities recorded for url-parse.

How To Fix

Latest published version: 1.5.10 as of 22 Oct 2026

npm install url-parse@1.5.10

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.4.5

This is the first release that contains the fix.

npm install url-parse@1.4.5

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

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