CVE-2026-109287
Open WebUI 0.9.6 before 0.11.4 Information Disclosure via Unscoped Directory ID
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 12, 2026
- Updated
- Oct 23, 2026
- Reserved
- Oct 12, 2026
Description
Open WebUI from 0.9.6 before 0.11.4 contains an authorization flaw where the knowledge base file listing does not verify that a supplied directory_id belongs to the requested knowledge base. Users with read access to any knowledge base can supply a retained foreign directory UUID to GET /api/v1/knowledge/{id}/files. The returned breadcrumbs expose folder names, owner user ids and knowledge base ids of that directory and all its ancestors.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
open-webuiopen-webui |
|
References
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