CVE-2026-45347

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.5.11, there is a blind server side request forgery (SSRF) via the PDF generate function. In the PDF export, user inputs are interpreted as HTML and embedded into the PDF. According to tests, scripts and some potentially dangerous tags (iFrame, Object, etc.) are blocked, preventing server-side content from being read through this vulnerability. However, an image tag can be used to force a server-side request (SSRF), as shown in the following below. This vulnerability is fixed in 0.5.11.
Configurations

Configuration 1 (hide)

cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*

History

18 May 2026, 19:30

Type Values Removed Values Added
References () https://github.com/open-webui/open-webui/security/advisories/GHSA-f776-fp4w-266c - () https://github.com/open-webui/open-webui/security/advisories/GHSA-f776-fp4w-266c - Exploit, Patch, Vendor Advisory
CPE cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*
First Time Openwebui
Openwebui open Webui

18 May 2026, 13:16

Type Values Removed Values Added
References () https://github.com/open-webui/open-webui/security/advisories/GHSA-f776-fp4w-266c - () https://github.com/open-webui/open-webui/security/advisories/GHSA-f776-fp4w-266c -

15 May 2026, 22:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-15 22:16

Updated : 2026-05-18 19:30


NVD link : CVE-2026-45347

Mitre link : CVE-2026-45347

CVE.ORG link : CVE-2026-45347


JSON object : View

Products Affected

openwebui

  • open_webui
CWE
CWE-918

Server-Side Request Forgery (SSRF)