{"id":"MAL-2026-18600","kind":"package","aliases":["MAL-2026-18600"],"related":[],"title":"Malicious code in @ubedsockets/baileys (npm)","description":"Malicious package. `@ubedsockets/baileys` is a trojanized fork of the Baileys WhatsApp library (@whiskeysockets/baileys). On connection it issues an authenticated `w:mex` newsletter FOLLOW mutation (query_id 7871414976211147) that silently subscribes every victim to attacker-controlled WhatsApp channels — hardcoded newsletter JIDs: 120363410154606795@newsletter, 120363423295236859@newsletter. Legitimate Baileys never hardcodes a channel JID or auto-follows on connect; all published versions are malicious. Detected by wormsign static analysis of the injected channel-subscription code.","summary":null,"severity":"critical","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"@ubedsockets/baileys","fixed":[],"affected":"all versions","ecosystem":"npm"}],"ecosystems":["npm"],"tags":["malicious","package"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-02T15:50:08+00:00","first_seen_at":"2026-11-04T06:25:04+00:00","triaged_at":"2026-11-04T06:25:48+00:00","updated_at":"2026-11-04T06:40:32+00:00","category":"package","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'-18600':8A,11A '-2026':7A,10A '120363410154606795':56C '120363423295236859':58C '7871414976211147':41C 'analysi':82C 'attack':49C 'attacker-control':48C 'authent':33C 'auto':69C 'auto-follow':68C 'bailey':24C,61C 'channel':52C,65C,87C 'channel-subscript':86C 'code':2A,89C 'connect':29C,72C 'control':50C 'detect':78C 'everi':45C 'follow':37C,70C 'fork':21C 'hardcod':53C,63C 'id':40C 'inject':85C 'issu':31C 'jid':55C,66C 'legitim':60C 'librari':26C 'mal':6A,9A 'malici':1A,13B,15C,77C 'mex':35C 'mutat':38C 'never':62C 'newslett':36C,54C,57C,59C 'npm':5A 'packag':14B,16C 'publish':74C 'queri':39C 'silent':43C 'static':81C 'subscrib':44C 'subscript':88C 'trojan':20C 'ubedsockets/baileys':4A,12A,17C 'version':75C 'victim':46C 'w':34C 'whatsapp':25C,51C 'whiskeysockets/baileys':27C 'wormsign':80C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":null,"audience":null,"plain_action":null,"pkeys":["baileys"],"ptokens":["baileys","ubedsockets"],"labels":["critical","malicious","npm","package"],"campaign_type":null,"first_public_at":"2026-11-02T15:50:08+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"osv-malicious","external_id":"MAL-2026-18600","url":"https://osv.dev/vulnerability/MAL-2026-18600","severity":"critical","published_at":"2026-11-02T15:50:08+00:00","modified_at":"2026-11-04T05:45:04+00:00","first_seen_at":"2026-11-04T06:25:04+00:00","fetched_at":"2026-11-04T06:25:04+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}