CVE-2026-56398 Open WebUI - Stored Cross-Site Scripting via OAuth Picture Claim SVG Data URI

Open WebUI before 0.9.5 contains a stored cross-site scripting vulnerability in the OAuth authentication flow where the picture claim URL MIME type is inferred from file extension rather than Content-Type header, allowing SVG files to bypass the profile image validator and be stored as data URIs...

Server-side Request Forgery (SSRF)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the processpictureurl function. An attacker can access internal network resources and exfiltrate sensitive data by submitting a crafted OAuth profile image URL that redirec...

PT-2026-50480

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.6 Description An issue exists where the process picture url function in backend/open webui/utils/oauth.py performs URL validation only on the initial URL. Subsequently, it uses aiohttp.ClientSession.get without...