MAL-2026-1933 Malicious code in libavcodec-extra (PyPI)
- Package
- libavcodec-extra
- Registry
- PyPI
What is MAL-2026-1933?
MAL-2026-1933 is a malicious package in libavcodec-extra, published on 19 Mar 2026.
Official description
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.
What should I do about MAL-2026-1933?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.