CVE-2026-2577

CRITICAL
2026-02-16 [email protected]
10.0
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Feb 16, 2026 - 10:16 nvd
CRITICAL 10.0

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.

Analysis

Nanobot WhatsApp bridge binds its WebSocket server to all interfaces (0.0.0.0) without authentication (CVSS 10.0), exposing the WhatsApp bridge to remote access.

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Remediation

Within 24 hours: Identify all systems running Nanobot with WhatsApp bridge enabled and isolate port 3001 from external/untrusted networks; disable the WhatsApp bridge component if not operationally critical. Within 7 days: Implement network segmentation to restrict port 3001 access to authorized systems only; deploy WAF rules to require authentication tokens; conduct forensic review for signs of compromise. …

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Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +50
POC: 0

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CVE-2026-2577 vulnerability details – vuln.today
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