CVE-2026-2577

CRITICAL EPSS 46.3%

Published Feb 16, 20264mo ago · Modified Apr 15, 20262mo ago

10.0 CVSS 3.1

Critical

Published Feb 16, 2026 4mo ago

Last Modified Apr 15, 2026 2mo ago

Description

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 Details

Base Score

10.0

Exploitability

3.9

Impact

5.8

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Changed

Confidentiality High

Integrity High

Availability None

Threat Intelligence

EPSS Exploit Probability

46.3% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-306 Missing Authentication for Critical Function Authentication

References 2

github.com https://github.com/HKUDS/nanobot/releases/tag/v0.1.3.post7
tenable.com https://www.tenable.com/security/research/tra-2026-09

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.