PT-2026-56887 · Openwebui · Open-Webui

Published 2026-07-09 · Updated 2026-07-09 · CVE-2026-59224

Mitre

CVSS v3.1

8.0

High

Base vector

AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, backend/open webui/routers/terminals.py built the ws terminal upstream URL from an unencoded session id and appended user id as a query parameter, allowing query injection to make the terminal backend resolve another user identity; the HTTP proxy path also forwarded X-User-Id as an integrity-unbound identity claim. This issue is fixed in version 0.10.0.

Fix

Authentication Bypass by Spoofing

Improper Authentication

Weakness Enumeration

CWE-290

CWE-287

Related Identifiers

CVE-2026-59224

Affected Products

Open-Webui

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-59224 · Security Note
• https://github.com/open-webui/open-webui/releases/tag/v0.10.0 · Note
• https://github.com/open-webui/open-webui/commit/5f3a628a8d291bb5d33e1a0b0c89fb62a2927934 · Note
• https://github.com/open-webui/open-webui/security/advisories/GHSA-j657-m4c4-24jq · Note
• https://github.com/open-webui/open-webui/pull/26042 · Note