# MAL-2026-15928: Malicious code in olympuslib (PyPI)


- **Type:** Malicious package
- **Package:** `olympuslib` (PyPI)
- **Published:** 4 Sep 2026

## 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.

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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.

## Fix prompt for AI coding agents

```text
MAL-2026-15928 is a malicious package: olympuslib (PyPI). Every version was published to cause harm.

Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.

Reference: https://insights.sbomify.com/MAL-2026-15928/ (Markdown: https://insights.sbomify.com/MAL-2026-15928/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-15928

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-15928/
Summaries are generated and may contain mistakes; the official description above is the record.