synium

GHSA-q365-j22v-76fw

Malicious code in synium (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.2`

## Source: kam193 (85fc917c33d970cb3365ff112f788b229638b757c32eaf99ba1054c8596298c1)
During import, package exfiltrates specific global variables to a remote target in a way typical for infostealers


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


Campaign: 2025-12-synium


Reasons (based on the campaign):


 - exfiltration-credentials


 - exfiltration-generic

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/synium/MAL-2025-192438.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/synium
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/synium/MAL-2025-192438.json
- https://github.com/advisories/GHSA-q365-j22v-76fw

Compromised versions (1)

= 1.0.2

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