{"id":"MAL-2026-18917","summary":"Malicious code in @yazxz-pedia/baileys (npm)","details":"@yazxz-pedia/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) 120363406164527273@newsletter, 120363421706152058@newsletter, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:28.739299875Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"urls":[],"domains":[],"files":[{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"a0d3fe8affc502eea86cc2e612700a35f966179cda44e99a8b039d9fd928bda7"}},{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"eacea61dc4e3562584c71a06ffc0302668a68c62848fd75512f91a7aacd18134"}}],"ips":[]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@yazxz-pedia/baileys"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"@yazxz-pedia/baileys","ecosystem":"npm","purl":"pkg:npm/%40yazxz-pedia/baileys"},"versions":["6.0.13","6.0.15"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@yazxz-pedia/baileys/MAL-2026-18917.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}