---
id: "MAL-2026-17181"
kind: "package"
aliases: ["MAL-2026-17181"]
title: "Malicious code in reqparser (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "reqparser", "fixed": [], "affected": "= 1.0.0; = 1.0.1", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-09-25T06:00:28+00:00"
first_seen_at: "2026-10-26T20:51:58+00:00"
updated_at: "2026-10-26T21:08:21+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-17181", "first_seen_at": "2026-10-26T20:51:58+00:00"}]
---

# Malicious code in reqparser (PyPI)

## Affected

- pypi:reqparser affected = 1.0.0; = 1.0.1 fixed ?

## Timeline

- 2026-10-26T20:51:58+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-17181

## From the sources

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

## Source: kam193 (982923c14e644e82a839621d37715fd123568fc378aed45b6afa6247bc0b5054)
During the module import, the package starts an infostealer. It exfiltrates data from crypto currency wallets and web browsers, ensures persistence and installs further malware.


---

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


Campaign: 2026-09-reqparser


Reasons (based on the campaign):


 - malware


 - persistence


 - exfiltration-crypto


 - exfiltration-browser-data


 - The package contains code to detect if it is running in a sandbox environment.


 - infostealer


 - keylogger

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_