---
id: MAL-2026-18230
title: Malicious code in larchworker (PyPI)
summary: Malicious code in larchworker (PyPI)
severity: critical
exploited: true
vendor: larchworker
product: larchworker
ecosystem: pip
affected:
  - larchworker
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T16:31:11.307430428Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/MAL-2026-18230'
references:
  - url: 'https://bad-packages.kam193.eu/pypi/package/larchworker'
tags:
  - osv
  - pip
  - malware
ingestedAt: '2026-10-24T11:59:36.111Z'
---

## Overview


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

## Source: kam193 (87e174c9dc2485263894e4d6c3d1560589659afbfbe9397ca1e1b53fb21d96b3)
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

- `larchworker`

## Remediation

Refer to the advisory for the patched release.