Typebot CVE-2026-39966
MEDIUMCVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
2DescriptionNVD
TypeBot is a chatbot builder tool. In versions 3.15.2, the getLinkedTypebots API endpoint returns full bot definitions to any authenticated user who references a target bot ID in a Typebot Link block, regardless of workspace ownership, leading to IDOR. The authorization check uses Array.filter() with an async callback - since filter() is synchronous, the callback always returns a truthy Promise, so the access control predicate is never actually evaluated. Any authenticated Typebot user can read the full definition of any other workspace's private bots, including: all conversation blocks and logic flow, variable values embedded in the bot (credentials, API keys, PII), webhook URLs and integration configurations. This issue has been fixed in version 3.16.0.
AnalysisAI
Typebot 3.15.2 exposes complete private bot definitions across all workspaces to any authenticated platform user via a broken authorization check in the getLinkedTypebots API endpoint, constituting a classic IDOR. The root cause is a JavaScript async/await misuse: Array.filter() is synchronous, so passing it an async callback causes every bot to pass the filter - the isReadTypebotForbidden predicate is never actually evaluated. …
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