CVE-2026-26193

🔴 HIGH

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.44, aanually modifying chat history allows setting the `embeds` property on a re...

Published
Feb 19, 2026
Last Modified
Feb 20, 2026
Views
49
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Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.44, aanually modifying chat history allows setting the `embeds` property on a response message, the content of which is loaded into an iFrame with a sandbox that has `allow-scripts` and `allow-same-origin` set, ignoring the "iframe Sandbox Allow Same Origin" configuration. This enables stored XSS on the affected chat. This also triggers when the chat is in the shared format. The result is a shareable link containing the payload that can be distributed to any other users on the instance. Version 0.6.44 fixes the issue.

Affected Products (1)

openwebui - open_webui

Version: *

CVSS Scores

CVSS 3.1 7.3
7.3
HIGH
CVSS 2.0 7.3

Additional Information

Source
security-advisories@github.com
State
Analyzed

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