CVE-2026-2577 CRITICAL

CVE-2026-2577: Nanobot Unauthenticated WhatsApp Session Hijack via WebSocket Bridge

Vendor Hkuds
Product nanobot
Weakness CWE-306 · Missing auth
Published February 16, 2026
Last update February 17, 2026
View on NVD All CVEs

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

What the vulnerability does

01Description

The WhatsApp bridge component in Nanobot binds the WebSocket server to all network interfaces (0.0.0.0) on port 3001 by default and does not require authentication for incoming connections. An unauthenticated remote attacker with network access to the bridge can connect to the WebSocket server to hijack the WhatsApp session. This allows the attacker to send messages on behalf of the user, intercept all incoming messages and media in real-time, and capture authentication QR codes.

Key dates

02Disclosure timeline

February 16, 2026 CVE published
February 17, 2026 Record updated