gauth-client

GHSA-4rfw-cx42-pmmw

Malicious code in gauth-client (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1.0`

## Source: kam193 (aea1fab5eb3b9422c65232e53e79eb71ba3436355601cd61e7a7b0177779df4e)
Package impersonates Google and attempts to exfiltrate various credential files. It also setups PTH file for automated start during Python initialization. In the analyzed version, the exfiltration target was set as localhost suggesting it's not the final code.


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


Campaign: 2026-05-gauth-client


Reasons (based on the campaign):


 - exfiltration-credentials


 - impersonation


 - files-exfiltration

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/gauth-client/MAL-2026-3252.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/gauth-client
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/gauth-client/MAL-2026-3252.json
- https://github.com/advisories/GHSA-4rfw-cx42-pmmw

Compromised versions (1)

= 0.1.0

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