---
id: CVE-2026-48494
title: TypeBot is a chatbot builder tool
summary: >-
  TypeBot is a chatbot builder tool. In version 3.16.1, an authenticated user
  who has read access to any typebot can resume a WhatsApp preview webhook
  session that belongs to a different typebot by mixing an authorized
  `typebotId` and `blo…
severity: none
cwe:
  - CWE-639
published: '2026-08-11'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:46:02.457'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-48494'
references:
  - url: >-
      https://github.com/baptisteArno/typebot.io/commit/36a618610174fd168fb255d9c8ecc0d2cf61a192
    label: security-advisories@github.com
  - url: 'https://github.com/baptisteArno/typebot.io/pull/2499'
    label: security-advisories@github.com
  - url: 'https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-fqf7-mmp5-j3jq
    label: security-advisories@github.com
  - url: >-
      https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-fqf7-mmp5-j3jq
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00433
epssPercentile: 0.371
ingestedAt: '2026-09-09T21:22:45.528Z'
---

## Overview

TypeBot is a chatbot builder tool. In version 3.16.1, an authenticated user who has read access to any typebot can resume a WhatsApp preview webhook session that belongs to a different typebot by mixing an authorized `typebotId` and `blockId` and a foreign preview phone number tied to another preview session. The WhatsApp test-webhook handler authorizes the parent typebot first, but then resolves the preview chat session only by `wa-preview-{phone}`. As a result, an attacker can inject arbitrary webhook JSON into another workspace's WhatsApp preview session and advance its draft/unpublished flow without any access to the victim typebot. Version 3.17.0 patches the issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.