CVE-2026-85693

Medium

Description

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductMckaywrigley Chatbot-ui

PublishedSep 4, 2026

First seenSep 4, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
mckaywrigley chatbot-ui	v ≤ 81328b61d2a4ab597a7a057be70e785cf756d9f8	—

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