CVE-2026-59214

Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, Open WebUI runs client-side Python with Pyodide in a same-origin web worker, allowing stored chat payloads that use pyodide.http.pyfetch or the js module fetch and XMLHttpRequest APIs to issue authenticated same-origin requests when a victim clicks Run, which can reach admin-only endpoints and execute server-side code through configured tools. This issue is fixed in version 0.10.0.

PUBLISHED Reserved 2026-07-02 | Published 2026-07-09 | Updated 2026-07-09 | Assigner GitHub_M

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

References

github.com/...-webui/security/advisories/GHSA-4r2p-27mh-5m22

cve.org (CVE-2026-59214)

nvd.nist.gov (CVE-2026-59214)

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