CVE-2026-39967

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.
Configurations

No configuration.

History

26 May 2026, 20:16

Type Values Removed Values Added
References () https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-f475-7m4x-m6mx - () https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-f475-7m4x-m6mx -

22 May 2026, 19:18

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-22 19:17

Updated : 2026-05-26 20:16


NVD link : CVE-2026-39967

Mitre link : CVE-2026-39967

CVE.ORG link : CVE-2026-39967


JSON object : View

Products Affected

No product.

CWE
CWE-639

Authorization Bypass Through User-Controlled Key

CWE-862

Missing Authorization