CVE-2026-85693 PUBLISHED

Chatbot UI Cross-User Private File Content Disclosure via Retrieval API

Assigner: VulnCheck
Reserved: 04.09.2026 Published: 04.09.2026 Updated: 04.09.2026

Chatbot UI contains an authorization bypass vulnerability in the retrieval endpoint that allows authenticated attackers to access private file content belonging to other users by supplying arbitrary file UUIDs. The endpoint uses a service-role Supabase client that bypasses row-level security and fails to validate file ownership, enabling attackers to retrieve indexed content chunks from victim files through crafted POST requests.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.1

Product Status

Vendor mckaywrigley
Product chatbot-ui
Versions Default: unaffected
  • affected from 0 to 81328b61d2a4ab597a7a057be70e785cf756d9f8 (incl.)

Credits

  • George Chen finder

References

Problem Types

  • Authorization Bypass Through User-Controlled Key CWE