---
id: "MAL-2026-18750"
page: "https://infrastack.ai/live/MAL-2026-18750"
kind: "package"
aliases: ["MAL-2026-18750"]
title: "Malicious code in qzc690383 (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "qzc690383", "fixed": [], "affected": "= 1.0.0", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-11-07T10:21:28+00:00"
first_seen_at: "2026-11-07T11:17:32+00:00"
updated_at: "2026-11-07T11:27:57+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-18750", "first_seen_at": "2026-11-07T11:17:32+00:00"}]
exploit_sources: []
---

# Malicious code in qzc690383 (PyPI)

Link for people: https://infrastack.ai/live/MAL-2026-18750 (this .md is for agents)

## Affected

- pypi:qzc690383 affected = 1.0.0 fixed no fixed version listed

## Timeline

- 2026-11-07T11:17:32+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-18750

## From the sources

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_-= Per source details. Do not edit below this line.=-_

## 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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