CVE-2026-2577: critical vulnerability in HKUDS nanobot
Nanobot Unauthenticated WhatsApp Session Hijack via WebSocket Bridge
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 10epss 0.7%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Affected products
HKUDS · nanobotRelated CVEs — HKUDS nanobot
In the same product, most dangerous first.
CVE-2026-19243MEDIUMHKUDS nanobot Shell Allowlist shell.py ExecTool._spawn os command injectionEPSS 2.3%CVE-2026-90809MEDIUMHKUDS nanobot ExecTool shell.py ExecTool._spawn argument injectionEPSS 0.6%CVE-2026-33654HIGHZero-Click Indirect Prompt Injection and Authentication Bypass via Email PollingEPSS 0.5%CVE-2026-19244MEDIUMHKUDS nanobot MCP enabledTools Scope mcp.py connect_mcp_servers access controlEPSS 0.5%CVE-2026-92576CRITICALHKUDS nanobot before 0.3.0 Server-Side Request Forgery via WebFetchToolEPSS 0.4%CVE-2026-90808MEDIUMHKUDS nanobot ExecTool shell.py ExecTool._spawn incomplete blacklistEPSS 0.4%