queryservice-client

GHSA-mpf4-54mq-j5fc

Malicious code in queryservice-client (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1.0`

## Source: kam193 (92aafbccc7065760e0127931c5150c59561f3b753ab9fe79dbcbdafd1aef97dc)
Dependency confusion PoC that exfiltrates also potentially sensitive environment variables


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


Campaign: GENERIC-questionable-pentest


Reasons (based on the campaign):


 - exfiltration-env-variables


 - exfiltration-generic


 - The package overrides the install command in setup.py to execute malicious code during installation.


 - typosquatting

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/queryservice-client/MAL-2026-5.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/queryservice-client
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/queryservice-client/MAL-2026-5.json
- https://github.com/advisories/GHSA-mpf4-54mq-j5fc

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.