CVE-2026-39969

TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint (POST /v1/workspaces/{workspaceId}/whatsapp/{credentialsId}/webhook) does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes both workspaceId and credentialsId as path parameters, which are logged in web server access logs, visible in Meta's webhook configuration dashboard, and potentially shared when configuring integrations. This allows any unauthenticated attacker to send spoofed webhook messages to trigger bot flows, consume API resources, and interact with external services using the workspace owner's credentials. The issue has been fixed in version 3.17.0.
Configurations

No configuration.

History

23 May 2026, 04:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-22 19:17

Updated : 2026-05-23 04:16


NVD link : CVE-2026-39969

Mitre link : CVE-2026-39969

CVE.ORG link : CVE-2026-39969


JSON object : View

Products Affected

No product.

CWE
CWE-287

Improper Authentication

CWE-345

Insufficient Verification of Data Authenticity