---
id: PYSEC-2026-1068
aliases:
  - MAL-2026-5313
title: Malicious code in dreamgen (PyPI)
summary: Malicious code in dreamgen (PyPI)
severity: none
vendor: dreamgen
product: dreamgen
ecosystem: pip
affected:
  - dreamgen
published: '2026-07-07'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/PYSEC-2026-1068'
references:
  - url: >-
      https://inspector.pypi.io/project/dreamgen/1.8.1/packages/17/5b/d156503d17b45fad8acce719202870a7652915141b02ec365f8df88a5b4f/dreamgen-1.8.1-py3-none-any.whl/dreamgen-setup.pth
  - url: >-
      https://www.endorlabs.com/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages
  - url: 'https://www.stepsecurity.io/blog/the-hades-campaign-pypi-packages'
tags:
  - osv
  - pip
ingestedAt: '2026-07-08T18:34:39.969Z'
---

## Overview

Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08,
malicious phantom releases of dreamgen were published to PyPI using stolen
credentials. The package executes a bundled JavaScript payload (via the Bun
runtime) on import that harvests and exfiltrates credentials and attempts
self-propagation. This entry is a summary; behavior may not be fully
characterized here. See the linked references for detailed analysis and
indicators of compromise.


## Affected packages

- `dreamgen`

## Remediation

Refer to the advisory for the patched release.