Vulnerability Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a stored cross-site scripting (XSS) vulnerability that allows any authenticated user with model creation permission (workspace.models) to execute arbitrary JavaScript in the browser of any other user (including admins) who views the malicious model in the chat UI. This vulnerability is fixed in 0.9.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openwebui | Open Webui | < 0.9.0 |
Related Weaknesses (CWE)
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-gf5m-wcrh-7928ExploitMitigationVendor Advisory
- https://github.com/open-webui/open-webui/security/advisories/GHSA-gf5m-wcrh-7928ExploitMitigationVendor Advisory
FAQ
What is CVE-2026-44721?
CVE-2026-44721 is a vulnerability with a CVSS score of 7.3 (HIGH). Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a stored cross-site scripting (XSS) vulnerability that allows any authenticated user ...
How severe is CVE-2026-44721?
CVE-2026-44721 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44721?
Check the references section above for vendor advisories and patch information. Affected products include: Openwebui Open Webui.