yonzoffic-baileys (npm) · Malicious Code
Affects yonzoffic-baileysSource GCVE Database
Malicious package : remove yonzoffic-baileys and rotate any secrets on hosts that installed it.
Data as of 26 Oct 2026, 16:27 UTC
Malicious package
Published to npm · OSV MAL-2026-17413
What to do
Remove yonzoffic-baileys from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmyonzoffic-baileys | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
The npm package yonzoffic-baileys version 8.6.90 is a malicious fork of the Baileys WhatsApp Web library that injects code to silently subscribe the victim's WhatsApp account to attacker-controlled channels without user consent. The malicious code uses the installer's authenticated WhatsApp session to issue a covert FOLLOW query to subscribe to hidden WhatsApp Channel/Newsletter JIDs. The target JIDs are obfuscated or fetched dynamically, allowing attackers to change targets post-installation. This behavior does not steal credentials, establish persistence, or execute arbitrary code.