Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.7.0, aanually modifying chat history allows setting the `html` property within document metadata. This causes the frontend to enter a code path that treats document contents as HTML, and render them in an iFrame when the citation is previewed. This allows stored XSS via a weaponized document payload in a chat. The payload also executes when the citation is viewed on a shared chat. Version 0.7.0 fixes the issue.

INFO

Published Date :

2026-02-19T19:10:52.185Z

Last Modified :

2026-02-19T21:23:23.625Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-26192 vulnerability.

Vendors Products
Open-webui
  • Open-webui
Openwebui
  • Open Webui
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-26192.

URL Resource
https://github.com/open-webui/open-webui/blob/6f1486ffd0cb288d0e21f41845361924e0d742b3/src/lib/components/chat/Messages/Citations/CitationModal.svelte#L163-L170 cve-icon cve-icon
https://github.com/open-webui/open-webui/security/advisories/GHSA-xc8p-9rr6-97r2 cve-icon cve-icon
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CVSS Vulnerability Scoring System

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