qzc690383

GHSA-43g4-m7g8-p53p

Malicious code in qzc690383 (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: amazon-inspector (d4b997b7e9404963bfb44f2179abe28dd5238feac452fcce4b77fc945c430c06)
On `pip install`, setup.py executes shell commands to collect installer host identifiers (id, whoami, hostname, uname, nvidia-smi output, /proc/1/cmdline) and issues an outbound `curl` to https://api.ip.sb/ip to retrieve the installer's public IP. The collected fingerprint is base64-encoded and smuggled as 40-character-chunk model names into POST requests to a local Xinference server at http://127.0.0.1:9997/v1/model_registrations/flexible, using `xinference.model.flexible.launchers.transformers_launcher` as the launcher reference, so an operator with access to that Xinference instance can retrieve the host fingerprint by listing registered models. The build-command guard only skips metadata-only invocations, so the reconnaissance fires on a plain install. The package ships no real library functionality — the install-time code is the entire payload.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/e36b77c257151f9a76f303a0b3259ae3140d3a18/osv/malicious/pypi/qzc690383/MAL-2026-18750.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/e36b77c257151f9a76f303a0b3259ae3140d3a18/osv/malicious/pypi/qzc690383/MAL-2026-18750.json
- https://pypi.org/project/qzc690383/1.0.0
- https://bad-packages.kam193.eu/pypi/package/qzc690383
- https://github.com/ossf/malicious-packages/blob/e3cb1fb7f7c3ea7aac52daa1e388c7ac2249f67e/osv/malicious/pypi/qzc690383/MAL-2026-18750.json
- https://github.com/advisories/GHSA-43g4-m7g8-p53p

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.