---
id: "MAL-2026-19055"
page: "https://infrastack.ai/live/MAL-2026-19055"
kind: "package"
aliases: ["MAL-2026-19055"]
title: "Malicious code in @vanzky/baileys (npm)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "@vanzky/baileys", "note": "all versions", "fixed": [], "affected": "", "ecosystem": "npm"}]
ecosystems: ["npm"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-11-02T16:11:56+00:00"
first_seen_at: "2026-11-10T00:26:22+00:00"
updated_at: "2026-11-10T00:27:33+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-19055", "first_seen_at": "2026-11-10T00:26:22+00:00"}]
exploit_sources: []
---

# Malicious code in @vanzky/baileys (npm)

Link for people: https://infrastack.ai/live/MAL-2026-19055 (this .md is for agents)

## Affected

- npm:@vanzky/baileys affected range not listed fixed no fixed version listed

## Timeline

- 2026-11-10T00:26:22+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-19055

## From the sources

Malicious package. `@vanzky/baileys` is a trojanized fork of the Baileys WhatsApp library (@whiskeysockets/baileys). it silently subscribes every victim (via the injected WhatsApp newsletter/channel FOLLOW on connect) to attacker-controlled WhatsApp channels — hardcoded newsletter JIDs: 120363412479307951@newsletter, 120363413713776550@newsletter, 120363429868081610@newsletter. Legitimate Baileys never hardcodes a channel JID or auto-follows on connect; all published versions are malicious. Detected by wormsign static analysis of the injected channel-subscription code.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_