---
id: MAL-2026-18232
title: Malicious code in marshrunner (PyPI)
summary: Malicious code in marshrunner (PyPI)
severity: critical
exploited: true
vendor: marshrunner
product: marshrunner
ecosystem: pip
affected:
  - marshrunner
published: '2026-10-23'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T14:45:11.084114982Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/MAL-2026-18232'
references:
  - url: 'https://bad-packages.kam193.eu/pypi/package/marshrunner'
  - url: 'https://pypi.org/project/marshrunner/0.1.0/'
tags:
  - osv
  - pip
  - malware
ingestedAt: '2026-10-24T11:59:36.112Z'
---

## Overview


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

## Source: amazon-inspector (b31e9ef561aa7074fd3ce1090d59e6e314fddeb7fc6892cbdc72257c84eb7556)
Package marshrunner version 0.1.0 on PyPI was scanned with no a static rule matches and no traced behaviors indicating installer-side harm. No install-time network activity, no credential or environment variable reads, no filesystem persistence outside the package's own directory, no obfuscated payloads, and no outbound exfiltration primitives were identified in the shipped files.

## Source: kam193 (689d5b87d977bc368c98efb8cf42d53c25465575a667cd61337bb403dfdcb4fb)
This campaign consists of similar loader packages, which provide executing code from a given URL. While they do not contain the malicious payload and the usage remains unknown, they are clearly a coordinated campaign to place multiple deceptive ways to load malicious code.


---

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


Campaign: 2026-10-voice-synthesis-profiles


Reasons (based on the campaign):


 - other


 - Downloads and executes a remote malicious script.


## Affected packages

- `marshrunner`

## Remediation

Refer to the advisory for the patched release.