Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/baptisteArno/typebot.io/commit/d96f572e6099c5f622c05ba7b8634e
- https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0
- https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-cq66-9cwr-x8
- https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-cq66-9cwr-x8
FAQ
What is CVE-2026-39968?
CVE-2026-39968 is a vulnerability with a CVSS score of 7.1 (HIGH). 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...
How severe is CVE-2026-39968?
CVE-2026-39968 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-39968?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.