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CVE PROGRAM SOURCE RECORD6.4 Medium

CVE-2026-62861

TypeBot: Cross-tenant custom-domain removal via unbound `name` in handleDeleteCustomDomain

Description

TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a client-supplied workspaceId but sends the client-supplied domain name to the shared Vercel project before verifying that the domain belongs to that workspace. This issue is fixed in version 3.18.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

baptisteArno typebot.io

  • < 3.18.0affected

References