CVE-2026-62861

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.

• CWE-639
• CWE-862

• https://github.com/baptisteArno/typebot.io/commit/06575dfcd461ba76071012869d4b1f4046f9a6b8
• https://github.com/baptisteArno/typebot.io/releases/tag/v3.18.0
• https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-7h82-p425-wpmg

Published

Aug 25, 2026

Last Modified

Sep 9, 2026

Status

Deferred

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
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