{"id":"MAL-2026-18877","summary":"Malicious code in @rakku-kun/baileys (npm)","details":"@rakku-kun/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) 120363406005175144@newsletter, 12036421453095412@newsletter, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:26.028637757Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"files":[{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"19eebb59a32742276578706382d41aa195d1402e19e58234e1d3c4f5659dc5f5"}},{"digests":{"sha256":"d163e360b649838b0083e3e3cf8925c30b1570c2bcdd7af2a0e3d1b783908557"},"paths":["lib/Socket/newsletter.js"]}],"ips":[],"urls":[],"domains":[]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@rakku-kun/baileys"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"@rakku-kun/baileys","ecosystem":"npm","purl":"pkg:npm/%40rakku-kun/baileys"},"versions":["2.0.10","2.0.11","2.0.12","2.0.13","2.0.14","2.0.15","2.0.2","2.0.22","2.0.23","2.0.24","2.0.26","2.0.27","2.0.31","2.0.4","2.0.5","2.0.6","2.0.7","2.0.8","2.0.9"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@rakku-kun/baileys/MAL-2026-18877.json","cwes":[{"description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code","cweId":"CWE-506"}]}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}