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CVE-2026-44566— Open WebUI: Arbitrary File Upload and Path Traversal

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是Open WebUI开源的一个可扩展、功能丰富、用户友好的自托管 WebUI。 Open WebUI 0.1.124之前版本存在路径遍历漏洞，该漏洞源于在提示中附加文件时，文件名源自原始HTTP上传请求且未经验证或清理，允许用户上传包含路径中点点段（dot-segments）的文件名，遍历出预期上传目录，用户可将文件上传到文件系统上Web服务器运行用户具有权限的任何位置。

CVSS 7.3 · High EPSS 0.46% · P37

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
open-webui open-webui < 0.1.124 affected
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I. Basic Information for CVE-2026-44566

Vulnerability Information
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Vulnerability Title
Open WebUI: Arbitrary File Upload and Path Traversal
Source: CVE Program / CVE List V5
Vulnerability Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.1.124, when attaching files to a promp, the name of the file is derived from the original HTTP upload request and is not validated or sanitized. This allows for users to upload files with names containing dot-segments in the file path and traverse out of the intended uploads directory. Effectively, users can upload files anywhere on the filesystem the user running the web server has permission. This vulnerability is fixed in 0.1.124.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Open WebUI 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open WebUI是Open WebUI开源的一个可扩展、功能丰富、用户友好的自托管 WebUI。 Open WebUI 0.1.124之前版本存在路径遍历漏洞，该漏洞源于在提示中附加文件时，文件名源自原始HTTP上传请求且未经验证或清理，允许用户上传包含路径中点点段（dot-segments）的文件名，遍历出预期上传目录，用户可将文件上传到文件系统上Web服务器运行用户具有权限的任何位置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-webui open-webui < 0.1.124 -

II. Public POCs for CVE-2026-44566

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III. Intelligence Information for CVE-2026-44566

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Vendor Advisories for CVE-2026-44566 (1)

Same Patch Batch · open-webui · 2026-05-15 · 59 CVEs total

CVE-2026-44551 9.1 CRITICAL Open WebUI: LDAP Empty Password Authentication Bypass
CVE-2026-45672 8.8 HIGH Open WebUI: Jupyter code execution works despite `ENABLE_CODE_EXECUTION=false` — feature g
CVE-2026-45315 8.7 HIGH Open WebUI: Stored XSS via attacker-controlled file extension in /api/v1/audio/transcripti
CVE-2026-44552 8.7 HIGH Open WebUI: Redis Cache Keys tool_servers and terminal_servers Missing Instance Prefix Ena
CVE-2026-45331 8.5 HIGH Open WebUI: Full SSRF Vulnerability in the RAG Web Search Feature
CVE-2026-45400 8.5 HIGH Open WebUI: Server-Side Request Forgery (SSRF) bypass in `validate_url`
CVE-2026-45401 8.5 HIGH Open WebUI: SSRF Bypass via HTTP Redirect Following in Web-Fetch and Image-Load Endpoints
CVE-2026-44570 8.3 HIGH Open WebUI: Inconsistent authorization controls within memories API
CVE-2026-45665 8.1 HIGH Open WebUI: Stored XSS in Banner Component via Improper Sanitization Order
CVE-2026-44554 8.1 HIGH Open WebUI: Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overw
CVE-2026-44553 8.1 HIGH Open WebUI: Stale Admin Role in Socket.IO Session Pool Enables Post-Demotion Cross-User No
CVE-2026-45402 8.1 HIGH Open WebUI: Cross-User File Access via Unchecked file_id in Folder Knowledge and Knowledge
CVE-2026-45301 8.1 HIGH Open WebUI: Missing permission check in files API allows authenticated users to list, acce
CVE-2026-44565 8.1 HIGH Open WebUI: Open WebUI Arbitrary File Write, Delete via Path Traversal
CVE-2026-45675 8.1 HIGH Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts
CVE-2026-45671 8.0 HIGH Open WebUI: shared-chat branch ignores access_type, allowing unauthorized file deletion
CVE-2026-45338 7.7 HIGH Open WebUI: SSRF via OAuth Profile Picture URL in _process_picture_url (oauth.py)
CVE-2026-45303 7.7 HIGH Open WebUI: Stored XSS via the HTML renedering view
CVE-2026-44555 7.6 HIGH Open WebUI: Base Model Routing Bypasses Access Control via Model Chaining
CVE-2026-45398 7.5 HIGH Open WebUI: IDOR - Retrieval API Bypasses Knowledge Base Access Controls

Showing top 20 of 59 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: open-webui
Same vendor: open-webui
Same weakness: CWE-22

V. Comments for CVE-2026-44566

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