---
id: MAL-2026-13487
title: Malicious code in flasq (PyPI)
summary: Malicious code in flasq (PyPI)
severity: none
vendor: flasq
product: flasq
ecosystem: pip
affected:
  - flasq
published: '2026-08-07'
updated: '2026-08-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/MAL-2026-13487'
references:
  - url: >-
      https://www.virustotal.com/gui/file/425f5336182e359211b5d751786d2ce1d31a673ea9c82107358a888803742649/detection
  - url: 'https://bad-packages.kam193.eu/pypi/package/flasq'
  - url: 'https://tria.ge/260807-fkycrazzg1/behavioral1'
  - url: 'https://pypi.org/project/flasq/0.1.2/'
  - url: 'https://pypi.org/project/flasq/0.1.1/'
  - url: 'https://pypi.org/project/flasq/0.2.0/'
  - url: 'https://pypi.org/project/flasq/0.3.0/'
tags:
  - osv
  - pip
ingestedAt: '2026-08-07T19:14:15.138Z'
---

## Overview


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

## Source: amazon-inspector (79bdf17d9c07586ddc0b7121037c2c10019d7be01d2dd49685680a8e876342c6)
setup.py registers a custom install cmdclass whose post-install hook is stored as a base64-encoded blob and decoded+exec'd at install time. On Linux, the decoded hook uses urllib.request.urlretrieve to download a binary from https://github.com/totti2188/8gp1Q7iZD3h4VW/releases/download/v1.3A/something, writes it to /tmp/something, chmods it 0755, and spawns it detached via subprocess.Popen(..., start_new_session=True). The download source is an unrelated personal GitHub account; there is no hash or signature verification; and the base64-obfuscation of an install-time code path is an evasion signal. The package advertises itself as 'HTTP client utilities' — this behavior is unrelated to that purpose. The setup.py also defaults the published PyPI name to 'requestss' (name=os.environ.get('PYPI_PACKAGE_NAME', 'requestss')), a one-character typosquat of the popular 'requests' package, indicating the artifact is intended to reach developers mistyping 'requests'.

## Source: kam193 (2498f9d207b216ad7438cd262c9136cc5453d288f97a74d4cd44a9a2accf9141)
Package imitates name of a popula library. During installation, obfuscated code downloads a malicious executable and starts it. It then exfiltrates at least cryptocurrency wallet data, probably more.


---

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


Campaign: 2026-08-flasq


Reasons (based on the campaign):


 - typosquatting


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


 - exfiltration-generic


 - Downloads and executes a remote executable.


 - obfuscation


 - exfiltration-crypto


## Affected packages

- `flasq`

## Remediation

Refer to the advisory for the patched release.