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OpenAdvisories
Malicious MAL-2026-18685

aemeath-baileys

npm package · versions 1.1.13

Reported Oct 26, 2026 · Updated Nov 5, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

aemeath-baileys is a fork of the Baileys WhatsApp Web library that silently subscribes the installer's own WhatsApp account to WhatsApp Channels chosen by the publisher. When the socket connects, code in lib/Socket/newsletter.js, lib/autofollow-newsletters.js sends the WhatsApp w:mex FOLLOW query and then MUTE, so the channel goes unnoticed, for the channel ID(s) 120363410056240594@newsletter, 120363412837402275@newsletter, 120363417661721059@newsletter, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).