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TI-2026-26502 Aliases CVE-2026-34207

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

Priority HIGH 66CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00239 15th percentileScored 2026-11-07
Fix Fixed typebot.io (baptisteArno): 3.16.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
baptisteArnotypebot.iobefore 3.16.03.16.0Patch availableCNA
  • typebot.io VendorbaptisteArno Affected before 3.16.0 Fixed in 3.16.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:typebot:typebot:*:*:*:*:*:*:*:*——baptisteArno
  • cpe:2.3:a:typebot:typebot:*:*:*:*:*:*:*:* Versions — — ·baptisteArno

Remediation

  • Fix · CNA typebot.io (baptisteArno) Fixed in 3.16.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-34207

References

Other 3

  • TI-2026-26091 TypeBot: Unauthenticated SSRF via isolated-vm fetch in preview chat endpoint bypasses SSRF controls CVSS 3.1CRITICAL 10.0
  • TI-2026-36038 TypeBot: Unauthenticated arbitrary s3 object write in generate-upload-url via unsanitized fileName CVSS 3.1CRITICAL 9.3
  • TI-2026-44929 TypeBot: Arbitrary server file read via Send Email block attachment path CVSS 4.0HIGH 8.7
  • TI-2026-36035 TypeBot vulnerable to cross-workspace OAuth credential takeover in updateOAuthCredentials via missing object binding CVSS 3.1CRITICAL 9.9
  • TI-2026-35208 TypeBot vulnerable to CSV injection in result export CVSS 3.1CRITICAL 9.6
  • TI-2025-40055 Typebot May Expose AWS EKS Credentials via Server Side Request Forgery in Webhook Block CVSS 3.1CRITICAL 9.9
See all 35 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences