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TI-2026-44927 Aliases CVE-2026-62861

TypeBot: Cross-tenant custom-domain removal via unbound `name` in handleDeleteCustomDomain

Priority LOW 29CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00414 35th percentileScored 2026-11-07
Fix Fixed typebot.io (baptisteArno): 3.18.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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 3.18.03.18.0Patch availableCNA
  • typebot.io VendorbaptisteArno Affected before 3.18.0 Fixed in 3.18.0 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 3.18.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-62861

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