PYSEC-2026-1734

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Import Source

https://github.com/pypa/advisory-database/blob/main/vulns/open-webui/PYSEC-2026-1734.yaml

JSON Data

https://api.osv.dev/v1/vulns/PYSEC-2026-1734

Aliases

Published

2026-07-07T14:34:56.723109Z

Modified

2026-07-07T17:47:59.942595123Z

Severity

8.4 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H CVSS Calculator

Summary

Open WebUI stored cross-site scripting (XSS) vulnerability

Details

A stored cross-site scripting (XSS) vulnerability exists in open-webui/open-webui version 0.3.8. The vulnerability is present in the /api/v1/models/add endpoint, where the model description field is improperly sanitized before being rendered in chat. This allows an attacker to inject malicious scripts that can be executed by any user, including administrators, potentially leading to arbitrary code execution.

References

Affected packages

PyPI / open-webui

Package

Name: open-webui; View open source insights on deps.dev
Purl: pkg:pypi/open-webui

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Last affected

0.3.8

Affected versions

0.*

0.1.124

0.1.125

0.2.0

0.2.1

0.2.2

0.2.3

0.2.4

0.2.5

0.3.0

0.3.1

0.3.2

0.3.3

0.3.4

0.3.5

0.3.6

0.3.7

0.3.8

Database specific

source

"https://github.com/pypa/advisory-database/blob/main/vulns/open-webui/PYSEC-2026-1734.yaml"