CVE-2026-45338

High

Published: 15/05/2026(UTC)Translated: 15/06/2026(UTC)NVD NIST

Summary

In Open WebUI prior to version 0.9.0, a Server-Side Request Forgery (SSRF) vulnerability exists in the _process_picture_url() function, allowing an attacker to force the server to make HTTP requests to internal resources.

Risk Assessment

This vulnerability could lead to data leakage from internal systems, posing a significant security risk to the organization.

Recommendation

It is recommended to upgrade to version 0.9.0 or later to mitigate this vulnerability.

Original NVD description (English source)

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a Server-Side Request Forgery (SSRF) vulnerability exists in _process_picture_url() in backend/open_webui/utils/oauth.py (line ~1338). The function fetches arbitrary URLs from OAuth picture claims without applying validate_url(), allowing an attacker to force the server to make HTTP requests to internal resources and exfiltrate the full response. This vulnerability is fixed in 0.9.0.