CVE-2023-0509: pyload-ng Improper Certificate Validation Vulnerability
Summary
CVE-2023-0509: Improper Certificate Validation in pyload-ng. Affects pyload-ng versions < 0.5.0b3.dev44. Fixed in 0.5.0b3.dev44. How to fix ↓
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Background
pyload-ng is an open-source download manager that allows users to manage and automate the downloading of files from various sources. It is designed to support a wide range of file hosting services and offers features such as automatic extraction of archives and support for multiple downloads. However, like many software applications that handle network communications, it is susceptible to vulnerabilities related to certificate validation, which can compromise the security of data transmitted over the network.
Vulnerability Detail
The vulnerability identified as CVE-2023-0509 in pyload-ng is due to improper certificate validation. This flaw allows an attacker to potentially intercept and manipulate data transmitted between the client and server by presenting a fraudulent certificate. As a result, sensitive information could be exposed, leading to data breaches or unauthorized access to user accounts. The vulnerability affects versions prior to 0.5.0b3.dev44, and its CVSS score is 7.4, indicating a high severity level.
How To Fix
Latest published version: 0.5.0b3.dev101 as of 23 Oct 2026
pip install --upgrade "pyload-ng==0.5.0b3.dev101"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
0.5.0b3.dev44
This is the first release that contains the fix.
pip install --upgrade "pyload-ng==0.5.0b3.dev44"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If an immediate upgrade is not feasible, consider disabling any features that rely on external connections or limit the use of pyload-ng to trusted networks until the update can be applied.
Conclusion
The CVE-2023-0509 vulnerability in pyload-ng poses significant security risks due to improper certificate validation. Users are strongly encouraged to update to the latest version to protect their applications from potential attacks. Utilizing tools like Vulert can further enhance security by providing real-time alerts for vulnerabilities.
See every vulnerability recorded for pyload-ng →
FAQ
CVE-2023-0509 is a vulnerability in pyload-ng that involves improper certificate validation, which can lead to security risks such as data interception.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The risks include unauthorized access to sensitive data, data breaches, and the potential for attackers to manipulate data transmitted over the network.
Yes, a patch is available in version 0.5.0b3.dev44 and later of pyload-ng. Users should upgrade to this version to mitigate the vulnerability.
Vulert is a service that monitors and alerts users in real-time for open-source vulnerabilities in software. It uses Pipfile.lock to track vulnerabilities without requiring access to the code.
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