---
id: CVE-2026-109287
title: >-
  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
summary: >-
  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 c…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-639
  - CWE-863
vendor: open-webui
product: open-webui
affected:
  - open-webui >= 0.9.6 < 0.11.4
published: '2026-10-12'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T15:55:45.630'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109287'
references:
  - url: >-
      https://github.com/open-webui/open-webui/security/advisories/GHSA-jx3w-3pqq-7f3w
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/open-webui-0.9.6-before-0.11.4-information-disclosure-via-unscoped-directory-id
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/open-webui/open-webui/security/advisories/GHSA-jx3w-3pqq-7f3w
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00278
epssPercentile: 0.20158
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-15T02:38:04.444019Z'
ingestedAt: '2026-10-12T18:00:08.189Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.