---
id: CVE-2023-0509
aliases:
  - GHSA-8v53-23mx-hcf9
  - PYSEC-2026-903
title: Improper Certificate Validation in pyload-ng
summary: Improper Certificate Validation in pyload-ng
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'
vendor: pyload-ng
product: pyload-ng
ecosystem: pip
affected:
  - pyload-ng < 0.5.0b3.dev44
patched:
  - pyload-ng 0.5.0b3.dev44
published: '2023-01-27'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-8v53-23mx-hcf9'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2023-0509'
  - url: >-
      https://github.com/pyload/pyload/commit/a9098bdf7406e6faf9df3da6ff2d584e90c13bbb
  - url: 'https://github.com/pyload/pyload'
  - url: 'https://huntr.dev/bounties/a370e0c2-a41c-4871-ad91-bc6f31a8e839'
tags:
  - osv
  - pip
epss: 0.0053
epssPercentile: 0.43797
ingestedAt: '2026-07-08T18:25:47.544Z'
---

## Overview

Improper Certificate Validation in GitHub repository pyload/pyload prior to 0.5.0b3.dev44.

## Affected packages

- `pyload-ng < 0.5.0b3.dev44`

## Remediation

Upgrade to a patched release:

- `pyload-ng 0.5.0b3.dev44`