{"id":"MAL-2026-18951","summary":"Malicious code in bintzge-baileys (npm)","details":"bintzge-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) 120363364987398307@newsletter, 120363390026302997@newsletter, 120363401467939056@newsletter, 120363407277177688@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":"2026-11-09T23:15:30.498602097Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"domains":[],"files":[{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"3dd4d474b0d49a7fa2ee346d0bdf2c8d6fc44230b95ecb01f24252abcddeb7df"}},{"digests":{"sha256":"81fe10ad8743aa433b69ab20f0574df642ce9b30b6a82df744dcdba7f82c419e"},"paths":["lib/Socket/newsletter.js"]},{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"c535146429d09a070c4986f1905dfbaf8a2314a0d3f33ffe07ca48b067b2f8b2"}},{"digests":{"sha256":"ccad7c2b94cc923ad55780e6602ed50f2d196fa047506ec0ad67f6584a9dad43"},"paths":["lib/Socket/newsletter.js"]},{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"dc3d30dfa36294982ca36a0034717ba811a39a0f35bdeb1bee6a4554eca94f20"}}],"ips":[],"urls":[]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/bintzge-baileys"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"bintzge-baileys","ecosystem":"npm","purl":"pkg:npm/bintzge-baileys"},"versions":["1.0.1","2.0.2","2.0.3","2.0.5","2.0.9","3.0.0","3.0.1"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bintzge-baileys/MAL-2026-18951.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"}]}