CVE-2026-45351

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.9, when a regular user [non-admin] logs into the application, a http://IP:8080/api/models? web request is initiated by the application and in response, it reveals the system prompt of available models set by admin on models pages in workspace affecting the confidentiality of application. This vulnerability is fixed in 0.8.9.

PUBLISHED Reserved 2026-05-11 | Published 2026-05-15 | Updated 2026-05-18 | Assigner GitHub_M

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

References

github.com/...-webui/security/advisories/GHSA-jh9g-8jqw-m2qx exploit

github.com/...-webui/security/advisories/GHSA-jh9g-8jqw-m2qx

cve.org (CVE-2026-45351)

nvd.nist.gov (CVE-2026-45351)

Download JSON