Title: typebot.io de baptisteArno, Description: TypeBot es una herramienta de creación de chatbots. En versiones anteriores a la 3.16.0, la protección SSRF para los bloques de Webhook / Petición HTTP valida solo la cadena de URL, los literales de nombre de host bloqueados y los formatos de IP literales. No resuelve DNS antes de permitir la petición. Como resultado, un nombre de host como ssrf-repro.example que se resuelve a 127.0.0.1, 169.254.169.254 o espacio RFC1918/privado pasa la validación y es posteriormente obtenido por el cliente HTTP del backend. Esto permite la falsificación de petición del lado del servidor a objetivos de bucle invertido, metadatos de la nube y redes privadas. Este problema ha sido resuelto en la versión 3.16.0.

{"timestamp":"2026-05-22T18:29:41.118648Z","id":"CVE-2026-34207","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"baptisteArno","product":"typebot.io","versions":[{"version":"< 3.16.0","status":"affected"}]}]

https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-grcc-6x37-wwgp

TypeBot is a chatbot builder tool.  SSRF protection for Webhook / HTTP Request blocks validates only the URL string, blocked hostname literals, and literal IP formats. It does not resolve DNS before allowing the request. As a result, a hostname such as ssrf-repro.example that resolves to 127.0.0.1, 169.254.169.254, or RFC1918/private space passes validation and is later fetched by the backend HTTP client. This enables server-side request forgery to loopback, cloud metadata, and private network targets. This issue has been resolved in version 3.16.0.

TypeBot is a chatbot builder tool. In versions prior to 3.16.0, SSRF protection for Webhook / HTTP Request blocks validates only the URL string, blocked hostname literals, and literal IP formats. It does not resolve DNS before allowing the request. As a result, a hostname such as ssrf-repro.example that resolves to 127.0.0.1, 169.254.169.254, or RFC1918/private space passes validation and is later fetched by the backend HTTP client. This enables server-side request forgery to loopback, cloud metadata, and private network targets. This issue has been resolved in version 3.16.0.

TypeBot is a chatbot builder tool.  SSRF protection for Webhook / HTTP Request blocks validates only the URL string, blocked hostname literals, and literal IP formats. It does not resolve DNS before allowing the request. As a result, a hostname such as ssrf-repro.example that resolves to 127.0.0.1, 169.254.169.254, or RFC1918/private space passes validation and is later fetched by the backend HTTP client. This enables server-side request forgery to loopback, cloud metadata, and private network targets. This issue has been resolved in version 3.16.0.

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

CWE-20

CWE-918

https://github.com/baptisteArno/typebot.io/commit/23818bb0e54db23c456ee3fa6b12d82b2af848b8

https://github.com/baptisteArno/typebot.io/releases/tag/v3.16.0

https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-grcc-6x37-wwgp