CVE-2026-39968

TypeBot is a chatbot builder tool. In versions 3.15.2 and prior, the fix for GHSA-4xc5-wfwc-jw47 ("Credential Theft via Client-Side Script Execution and API Authorization Bypass") is incomplete. While the builder's getCredentials tRPC endpoint was patched with workspace membership checks, the bot-engine runtime still allows any authenticated user to use credentials from any workspace via the preview chat endpoint. The bot-engine's getCredentials() utility function uses a falsy check (if (workspaceId && ...)) for workspace ownership validation. Since the preview endpoint accepts a client-controlled workspaceId field and the Zod schema allows empty strings, an attacker can supply workspaceId: "" to bypass credential ownership verification entirely. Exploitation can result in credential exfiltration, external service abuse, financial damage and a data breach.

• CWE-284
• CWE-522
• CWE-639

• https://github.com/baptisteArno/typebot.io/commit/d96f572e6099c5f622c05ba7b8634e6477dcf052
• https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0
• https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-cq66-9cwr-x8jr
• https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-cq66-9cwr-x8jr

Published

May 22, 2026

Last Modified

Jul 23, 2026

Status

Deferred

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