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CVE-2026-34207— TypeBot: SSRF Protection Bypass via DNS-Resolved Hostnames in Webhook / HTTP Request Validation

CVSS 7.6 · High EPSS 0.05% · P17

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
baptisteArnotypebot.io< 3.16.0affected
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I. Basic Information for CVE-2026-34207

Vulnerability Information
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Vulnerability Title
TypeBot: SSRF Protection Bypass via DNS-Resolved Hostnames in Webhook / HTTP Request Validation
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
baptisteArnotypebot.io < 3.16.0 -

II. Public POCs for CVE-2026-34207

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III. Intelligence Information for CVE-2026-34207

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Patches & Fixes for CVE-2026-34207 (1)

Vendor Advisories for CVE-2026-34207 (1)

Vendor Pages for CVE-2026-34207 (1)

Same Patch Batch · baptisteArno · 2026-05-22 · 11 CVEs total

CVE-2026-3371210.0 CRITICALTypeBot: Unauthenticated SSRF via isolated-vm fetch in preview chat endpoint bypasses SSRF
CVE-2026-284458.7 HIGHTypebot: Stored XSS via Rating Block Custom Icon Bypasses isUnsafe Sandbox in Builder Prev
CVE-2026-399657.7 HIGHTypeBot: SSRF via Open Redirect Bypass in HTTP Request and Code Blocks
CVE-2026-399687.1 HIGHTypeBot: Cross-Workspace Credential Theft via Bot-Engine Preview Endpoint
CVE-2026-284446.5 MEDIUMTypebot: IDOR in Result Logs Endpoint Allows Cross-Workspace Data Disclosure
CVE-2026-399666.5 MEDIUMTypeBot: Async filter() bypasses authorization, allowing IDOR in getLinkedTypebots and lea
CVE-2026-399696.5 MEDIUMTypeBot: WhatsApp Webhook Endpoint Missing Signature Verification
CVE-2026-399645.4 MEDIUMTypeBot: Stored XSS via javascript: URI in text bubble links — bot author executes JS on v
CVE-2026-399673.1 LOWTypeBot: Cross-Typebot Result Data Access via Missing typebotId Filter
CVE-2026-39970TypeBot: Stored Cross-Site Scripting (XSS) via SVG File Upload On Profile Picture Form

IV. Related Vulnerabilities

Same product: typebot.io
Same vendor: baptisteArno
Same weakness: CWE-20

V. Comments for CVE-2026-34207

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