Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-26192

Open WebUI vulnerable to Stored XSS via iFrame in citations model
Back to all
CVE

CVE-2026-26192

Open WebUI vulnerable to Stored XSS via iFrame in citations model

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.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.3
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/open-webui/open-webui/blob/6f1486ffd0cb288d0e21f41845361924e0d742b3/src/lib/components/chat/Messages/Citations/CitationModal.svelte#L163-L170, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26192.json, https://github.com/open-webui/open-webui/security/advisories/GHSA-xc8p-9rr6-97r2, https://nvd.nist.gov/vuln/detail/CVE-2026-26192

Severity

7.3

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.3
EPSS Probability
0.00043%
EPSS Percentile
0.13124%
Introduced Version
0
Fix Available
6adde203cd292a9e3af9c64a2ae36b603fed096a

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading