# MAL-2025-191852: Malicious code in readosso (PyPI)


- **Type:** Malicious package
- **Package:** `readosso` (PyPI)
- **Published:** 20 Sep 2025

## What is MAL-2025-191852?

MAL-2025-191852 is a malicious package in readosso, published on 20 Sep 2025. 

### Official description

Package automatically starts a Discord bot waiting for instructions to download and start a remote executable

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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2025-09-readosso

Reasons (based on the campaign):

 - Downloads and executes a remote executable.

## What should I do about MAL-2025-191852?

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-2025-191852 is a malicious package: readosso (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-2025-191852/ (Markdown: https://insights.sbomify.com/MAL-2025-191852/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2025-191852

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From sbomify Insights: https://insights.sbomify.com/MAL-2025-191852/
Summaries are generated and may contain mistakes; the official description above is the record.