polymarkets-sdk

GHSA-qf3w-x56m-g9wr

Malicious code in polymarkets-sdk (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: kam193 (facfcba74011619f5bb2eaf096e41239f81520cb4effff3b45f8b42c84d42060)
During import, the code attempts to exfiltrate to a hardcoded location sensitive data, including private SSH keys, cloud credentials and Windows SAM database.


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


Campaign: 2026-03-polymarkets-sdk


Reasons (based on the campaign):


 - exfiltration-credentials


 - files-exfiltration


 - exfiltration-cloud-tokens

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/polymarkets-sdk/MAL-2026-2403.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/polymarkets-sdk
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/polymarkets-sdk/MAL-2026-2403.json
- https://github.com/advisories/GHSA-qf3w-x56m-g9wr

Compromised versions (1)

= 1.0.0

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