Vulnerability MAL-2026-18919
Unknown
UNKNOWN RISK
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
15 days ago
October 27, 2026 at 12:00 AM UTC
Malicious code in @yemo-dev/yebail (npm)
1.0.0 - 2.0.2 and 3.0.1 - 4.2.12
1.0.0 - 2.0.2 and 3.0.1 - 4.2.12
Summary
Malicious code in @yemo-dev/yebail (npm)
Details
@yemo-dev/yebail 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/messages-recv.js sends the WhatsApp w:mex FOLLOW query for the channel ID(s) 120363408975923153@newsletter, 120363421171049265@newsletter (stored as character-code arrays), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).
References
Impacted packages
Timeline
Published
15 days ago
October 27, 2026 at 12:00 AM UTC
Last Modified
1 day ago
November 09, 2026 at 11:15 PM UTC