readosso

GHSA-w892-78m7-wjw3

Malicious code in readosso (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1.3`

## Source: kam193 (67ade73536cb4834ba05b33797c1cadcddbf7d90fc099bd6e53f94b9deec4f66)
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.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/readosso/MAL-2025-191852.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/readosso
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/readosso/MAL-2025-191852.json
- https://github.com/advisories/GHSA-w892-78m7-wjw3

Compromised versions (1)

= 0.1.3

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.