CVE-2026-109287— Open WebUI 0.9.6 before 0.11.4 Information Disclosure via Unscoped Directory ID
Quick assessment
Affected
open-webui open-webui
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Open WebUI 在 0.9.6 至 0.11.4（不含 0.11.4）版本中存在一个授权缺陷，知识base 的文件列表功能未验证所提供的 是否属于请求的知识库。具有任意知识库读取权限的用户可以提供一个保留的外部目录 UUID 来调用 接口。返回的“面包屑”信息会暴露该目录及其所有祖先目录的文件夹名称、所有者用户 ID 和知识库 ID。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud StorageAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| open-webui | open-webui | 0.9.6< 0.11.4 |
affected |
0.11.4 |
unaffected |
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I. Basic Information for CVE-2026-109287
Vulnerability Information
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Vulnerability Title
Open WebUI 0.9.6 before 0.11.4 Information Disclosure via Unscoped Directory ID
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| open-webui | open-webui | 0.9.6 ~ 0.11.4 | - |
|
II. Public POCs for CVE-2026-109287
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-109287 (2)
Same Patch Batch · open-webui · 2026-10-12 · 19 CVEs total
| CVE-2026-109286 | 8.1 HIGH | Open WebUI 0.7.0 before 0.11.4 Session Token Theft via SyncStatsModal |
| CVE-2026-109572 | 7.6 HIGH | Open WebUI 0.8.6 before 0.11.4 Privilege Escalation via Terminal Proxy |
| CVE-2026-109291 | 7.3 HIGH | Open WebUI 0.6.33 before 0.11.4 Stored XSS via Citation embed_url |
| CVE-2026-109290 | 7.3 HIGH | Open WebUI 0.11.1 before 0.11.4 Stored XSS via DOCX Preview |
| CVE-2026-109292 | 6.8 MEDIUM | Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections |
| CVE-2026-109293 | 6.5 MEDIUM | Open WebUI 0.11.0 before 0.11.4 Tool Source Disclosure via Tool Export Endpoint |
| CVE-2026-109297 | 6.5 MEDIUM | Open WebUI 0.11.0 before 0.11.4 Denial of Service via Automation Recurrence Rules |
| CVE-2026-109298 | 6.5 MEDIUM | Open WebUI 0.11.0 before 0.11.4 Memory Exhaustion via Knowledge Search Regex |
| CVE-2026-109294 | 6.5 MEDIUM | Open WebUI 0.6.42 before 0.11.4 Memory Exhaustion via Compressed Remote Image |
| CVE-2026-109295 | 6.5 MEDIUM | Open WebUI 0.11.0 before 0.11.4 ReDoS via grep_knowledge_files Event Loop |
| CVE-2026-109299 | 6.5 MEDIUM | Open WebUI 0.9.0 before 0.11.4 Denial of Service via Recurrence Rule Validation |
| CVE-2026-109288 | 6.4 MEDIUM | Open WebUI before 0.11.4 Stored XSS via javascript: URLs in Markdown Links |
| CVE-2026-109289 | 6.3 MEDIUM | Open WebUI 0.8.8 before 0.11.4 Improper Session Revocation via Terminal WebSocket |
| CVE-2026-109283 | 5.4 MEDIUM | Open WebUI 0.11.1 before 0.11.4 Authorization Bypass via OAuth Token Exchange |
| CVE-2026-109285 | 5.0 MEDIUM | Open WebUI 0.6.0 before 0.11.4 Improper Access Control via Stale File Metadata |
| CVE-2026-109300 | 4.6 MEDIUM | Open WebUI 0.6.31 before 0.11.4 Stored XSS via Tool-Call Embeds |
| CVE-2026-109296 | 4.3 MEDIUM | Open WebUI before 0.11.4 Missing Authorization via Backend Index on Model Routes |
| CVE-2026-109284 | 4.3 MEDIUM | Open WebUI 0.11.0 before 0.11.4 Improper Authorization via Chat Fork Endpoint |
IV. Related Vulnerabilities
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CVE-2026-109572
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Open WebUI 0.9.0 before 0.11.4 Denial of Service via Recurre -
CVE-2026-109298
Open WebUI 0.11.0 before 0.11.4 Memory Exhaustion via Knowle -
CVE-2026-109297
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CVE-2026-109298
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CVE-2026-109297
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V. Comments for CVE-2026-109287
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