MAL-2026-6383 Malicious code in gunicorm (PyPI)

Malicious package Published
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.

Sources

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