Skip to content
OpenAdvisories
Malicious MAL-2026-1933

libavcodec-extra

PyPI package · versions 99.99.9

Reported Mar 19, 2026 · Updated Apr 10, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: kam193 (00a68b4208fb4614b815e8a867c2155a8667b424e6457e3b72da362edbad9615)
During installation or import, the package exfiltrates basic information in a dependency confusion attempt. The user identifies themselves as a HackerOne user abusing the PyPI for the purpose of a bug bounty program.

---

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-hackerone-bugbounty

Reasons (based on the campaign):

- dependency-confusion

- The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.