---
id: "MAL-2026-15859"
kind: "package"
aliases: ["MAL-2026-15859"]
title: "Malicious code in 0requests (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "0requests", "fixed": [], "affected": "= 0.0.1", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-09-03T17:00:47+00:00"
first_seen_at: "2026-10-26T20:51:56+00:00"
updated_at: "2026-10-26T21:12:36+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-15859", "first_seen_at": "2026-10-26T20:51:56+00:00"}]
---

# Malicious code in 0requests (PyPI)

## Affected

- pypi:0requests affected = 0.0.1 fixed ?

## Timeline

- 2026-10-26T20:51:56+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-15859

## From the sources

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

## Source: amazon-inspector (ce3a594da2523b6481bd4639f5d3aaed9ec11a9adf92c2b99bf99d0ab6fb5b78)
The package name '0requests' is a one-character variant of the popular PyPI package 'requests'. On import of the top-level package, __init__.py enumerates os.environ and collects every variable whose name begins with SECRET, API, TOKEN, or KEY, then opens a TCP socket to a host/port taken from the TS_HOST and TS_PORT environment variables and sends the serialized dictionary of credential-shaped variables. The same import path spawns a python subprocess that connects to the same TS_HOST:TS_PORT, sends a 'SHELL' marker, and sleeps to keep the socket open, providing a remote-controlled shell channel on the host. Console output includes '0requests installed -- targeting requests' and a '[typosquat] exfiltrating' log line, confirming intent.

## Source: kam193 (b42d4eed37375dfa065db35c2e08365b9557b442c935e645b3e82564c4c32d7c)
During import, the code exfiltrates potentially sensitive env variables. In all analyzed versions the exfiltration target was a localhost, suggesting it was just a test.


---

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.


Campaign: 2026-09-0requests


Reasons (based on the campaign):


 - exfiltration-env-variables


 - typosquatting

---

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