---
id: "MAL-2026-18189"
kind: "package"
aliases: ["MAL-2026-18189"]
title: "Malicious code in aanthropic (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "aanthropic", "fixed": [], "affected": "= 1.0.0", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-10-22T13:02:37+00:00"
first_seen_at: "2026-10-26T20:52:02+00:00"
updated_at: "2026-10-26T21:05:48+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-18189", "first_seen_at": "2026-10-26T20:52:02+00:00"}]
---

# Malicious code in aanthropic (PyPI)

## Affected

- pypi:aanthropic affected = 1.0.0 fixed ?

## Timeline

- 2026-10-26T20:52:02+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-18189

## From the sources

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

## Source: kam193 (47e89f1629f5ff807eed865fd160d61ba0bb37d1a50f82922f4acd48c52d99e0)
During installation, package downloads and executes malware.


---

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


Campaign: 2026-10-semvver


Reasons (based on the campaign):


 - Downloads and executes a remote executable.


 - malware


 - typosquatting

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