CVE-2026-48063 Baileys has message upsert / hist sync spoofing and app state corruption when using maliciously crafted protocolMessage payload

Baileys is a cocket-based TS/JavaScript API for WhatsApp Web. In versions prior to both 6.7.22 and 7.0.0-rc12, any Baileys session can be sent a malicious payload via the placeholderResendMessage and trigger a fake messages.upsert event with a fake message key and payload. This allows anyone to...

CVE-2026-48063

Baileys (a TypeScript/JavaScript Web WhatsApp API) contains a vulnerability CVE-2026-48063 affecting versions prior to 6.7.22 and 7.0.0-rc12. An attacker can send a malicious protocolMessage payload via placeholderResendMessage to trigger a fake messages.upsert event with a fake message key and p...