{"id":"MAL-2026-18972","summary":"Malicious code in felixid (npm)","details":"felixid 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) 120363395770194330@newsletter, 120363398373680649@newsletter, 120363400049731712@newsletter, 120363401730881684@newsletter, 120363402922114408@newsletter, 120363402964797607@newsletter and 10 more, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).","modified":"2026-11-09T23:15:31.146605293Z","published":"2026-10-27T00:00:00Z","database_specific":{"iocs":{"ips":[],"urls":[],"domains":[],"files":[{"digests":{"sha256":"67216ed0bb7cb9a7c8b4bf3d91a364fcdb9a474ef28ca7b43e3179b20b11ae42"},"paths":["lib/Socket/newsletter.js"]},{"paths":["lib/Socket/newsletter.js"],"digests":{"sha256":"a5e37b524ceef6ed05b59160dedaabc2e926aa790f2aa0752d761c05c9d8eb69"}}]}},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/felixid"},{"type":"WEB","url":"https://www.ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/"}],"affected":[{"package":{"name":"felixid","ecosystem":"npm","purl":"pkg:npm/felixid"},"versions":["1.1.1","1.1.2"],"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/felixid/MAL-2026-18972.json"}}],"schema_version":"1.9.2","credits":[{"name":"CyberXYZ","contact":["https://cyberxyz.io"],"type":"FINDER"}]}