{"id":"MAL-2026-18896","summary":"Malicious code in @shinzepelly/baileys (npm)","details":"@shinzepelly/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 sends the WhatsApp w:mex FOLLOW query for the channel ID(s) 120363425135639322@newsletter (stored as base64 strings), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:23.544236517Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"ips":[],"urls":[],"domains":[],"files":[{"digests":{"sha256":"66980170aafe96d4d1216ce86057fc0c794a2277dd75023a106c0cad6325ee48"},"paths":["lib/Socket/newsletter.js"]}]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@shinzepelly/baileys"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"@shinzepelly/baileys","ecosystem":"npm","purl":"pkg:npm/%40shinzepelly/baileys"},"versions":["1.0.8"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@shinzepelly/baileys/MAL-2026-18896.json","cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}]}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}