XPROV2BAILEYSTEST · MAL-2026-19037 · Package
UNINSTALL IT, ROTATE THE KEYS IT COULD READ
Not triaged yet. The sources’ own description is below.
first public Oct 27, 2026 · 1 source
Could this affect your app?
Free first check from your website. Connect your repo for the full answer.
Unknown from the sources.
Unknown from the sources.
xprov2baileystest 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 sends the WhatsApp w:mex FOLLOW query for a list downloaded at runtime from https://raw.githubusercontent.com/dlcine450/fll/refs/heads/main/fll.json (the URL itself stored as base64 strings), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).
Check it with your coding agent
It reads this page and tells you if your code is affected.
Are you affected?
Ask from here. InfraStack checks the affected versions against your stack and answers in your inbox.
InfraStack checks the affected versions against your stack and answers in Slack, with the evidence and the fix.