Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openwebui | Open Webui | < 0.8.9 |
Related Weaknesses (CWE)
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-jh9g-8jqw-m2qxExploitMitigationVendor Advisory
- https://github.com/open-webui/open-webui/security/advisories/GHSA-jh9g-8jqw-m2qxExploitMitigationVendor Advisory
FAQ
What is CVE-2026-45351?
CVE-2026-45351 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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/model...
How severe is CVE-2026-45351?
CVE-2026-45351 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45351?
Check the references section above for vendor advisories and patch information. Affected products include: Openwebui Open Webui.