CVE-2026-34207

TypeBot: SSRF Protection Bypass via DNS-Resolved Hostnames in Webhook / HTTP Request Validation

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.

Affected

baptisteArno · typebot.io

CVSS v3.1 GITHUB

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

EPSS

0.41% chance of exploitation in the next 30 days, 34th percentile

Published

2026-05-22

Proof-of-concept exploits (1)

• 0xmrma/CVE-2026-342070★ · 2026-06-26

References

• CVE Record
• NVD entry

Related

• CVE-2026-14361
• CVE-2026-32722
• CVE-2026-33146
• CVE-2026-33936
• CVE-2026-34048
• CVE-2026-34212