MAL-2026-6383 Malicious code in gunicorm (PyPI)
- Package
- gunicorm
- Registry
- PyPI
What is MAL-2026-6383?
MAL-2026-6383 is a malicious package in gunicorm, published on 24 Jun 2026.
Official description
Package name gunicorm is a single-character edit of the widely-used gunicorn WSGI server and ships no functional code beyond setup.py. setup.py registers custom install and egg_info cmdclasses so that, on pip install or pip download, the package captures the full os.environ and the output of ps -elf, then POSTs the combined data via curl to http://gjampdwmdjmppwedtkpbbdkq05f6iiz6r.oast.fun (an interactsh OAST collector). Environment variables on developer and CI machines routinely contain AWS keys, registry tokens, and other credentials, all of which are exfiltrated unconditionally to an attacker-controlled endpoint over plain HTTP. The README self-describes the package as a proof-of-concept that runs a command on pip download/install. There is no legitimate functionality.
During installation, the package exfiltrates env variables
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-06-ip-rotat
Reasons (based on the campaign):
The package overrides the install command in setup.py to execute malicious code during installation.
exfiltration-env-variables
typosquatting
What should I do about MAL-2026-6383?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.