# CVE-2023-0509: PYSEC-2026-903 - Improper Certificate Validation in pyload-ng

Source: https://junglewise.ai/threats/cve-2023-0509-improper-certificate-validation-in-pyload-ng  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2023-0509 · Severity: low · CVSS 3 · Published 2026-07-07

Improper Certificate Validation in pyload-ng

Technologies: [pyload-ng (PyPI)](https://junglewise.ai/threats/technologies/pyload-ng). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2023-0509 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-0509 being exploited in the wild.

**How severe is CVE-2023-0509?** Low severity, with a CVSS score of 3, published 7 July 2026.

**Which products and versions are affected?** pyload-ng (PyPI) ECOSYSTEM:introduced=0,fixed=0.5.0b3.dev44.

**Is there a fix for CVE-2023-0509?** Yes. pyload-ng (PyPI): upgrade to 0.5.0b3.dev44 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2023-0509?** Check whether you run pyload-ng (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- pyload-ng (PyPI): upgrade to 0.5.0b3.dev44 or later

  ```sh
  pip install "pyload-ng>=0.5.0b3.dev44"
  ```


## Affected products

- pyload-ng (PyPI) ECOSYSTEM:introduced=0,fixed=0.5.0b3.dev44

## Identifiers

- CVE-2023-0509
- GHSA-8v53-23mx-hcf9
- PYSEC-2026-903

## Related threats

- [pyLoad unauthenticated template access and information disclosure](https://junglewise.ai/threats/cve-2026-75597-pyload-unauthenticated-access-to-web-path-filename-bypasses)
- [pyLoad API denial of service in multipart file upload handling](https://junglewise.ai/threats/cve-2026-48484-pyload-lack-of-input-size-validation-leads-to-denial-of-service)
- [pyload-ng authentication bypass in getUserData/get_userdata](https://junglewise.ai/threats/pyload-ng-getuserdata-get-userdata-exposed-at-perms-any-allow-any-cd197c9d)
- [pyLoad rate-limit bypass and audit-log spoofing via X-Forwarded-For header](https://junglewise.ai/threats/pyload-rate-limit-bypass-and-audit-log-spoofing-via-trusted-client-0df0fd12)
- [pyLoad session invalidation bypass in privilege revocation and password change](https://junglewise.ai/threats/pyload-privilege-revocation-and-password-change-through-the-rest-api-do-8e7301ba)