TypeBot: Cross-Workspace Credential Theft via Bot-Engine Preview Endpoint_CVE-2026-39968

7.1 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

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.

Basic Information

ID CVE-2026-39968

Source GitHub_M

Published May 22, 2026 at 18:26

Affected Product

Vendor baptisteArno

Product typebot.io

Version < 3.16.0

Affected Versions baptisteArno typebot.io < 3.16.0

CWE Classification

CWE-284 CWE-522 CWE-639

References

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    "published": "2026-05-22T18:26:55.446Z",
    "modified": "2026-05-22T18:26:55.446Z",
    "type": "cve",
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