MAL-2026-15928 Malicious code in olympuslib (PyPI)
- Package
- olympuslib
- Registry
- PyPI
What is MAL-2026-15928?
MAL-2026-15928 is a malicious package in olympuslib, published on 4 Sep 2026.
Official description
Top-level init.py invokes a _canary() routine on import that serializes the entire os.environ dictionary along with socket.gethostname() and package identifiers, then POSTs the payload via urllib to https://vuorblucjega.dssldrf.net/python-install-log/olympuslib. Any secret-shaped environment variable present in the installer's process (CI tokens, cloud credentials, API keys, database URLs) is transmitted to the hardcoded external host. The package name and inflated 99.99.0 version, combined with a beacon shape that reports which internal hosts resolve the name from the public index, are consistent with a dependency-confusion harvesting package targeting private/internal package names.
During import, the package exfiltrates environment variables.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-09-amirgo4496
Reasons (based on the campaign):
exfiltration-env-variables
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-2026-15928?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.