CVE-2026-54016

Open WebUI: Open WebUI BOLA: `search_knowledge_files` Allows Unauthorized Knowledge Base File Enumeration

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI has a Broken Object Level Authorization (BOLA) vulnerability in the builtin search_knowledge_files tool. When native function calling is enabled and the selected model has no attached knowledge bases, an authenticated user can call search_knowledge_files with an arbitrary knowledge_id. The function then returns file metadata from that knowledge base without checking whether the user has read access. This allows unauthorized enumeration of private or restricted knowledge base files. This vulnerability is fixed in 0.9.6.

Affected

open-webui

CVSS v3.1 GITHUB

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.30% chance of exploitation in the next 30 days, 22nd percentile

Published

2026-06-23

Proof-of-concept exploits (1)

• advisories/GHSA-cx9v-4qj2-jrw6

Security advisories

• open-webui/open-webui/security/advisories/GHSA-cx9v-4qj2-jrw6

References

• CVE Record
• NVD entry