CVE-2026-88006

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.1, Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without running the OAuth role management that the normal OAuth login callback runs. A user whose provider roles the login callback would refuse, or would demote, could still obtain a working session at their existing role through this endpoint. This issue is fixed in version 0.11.1.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/open-webui/open-webui/commit/d799e81edbdc971c6deb096b6474cd95b93504bf	Patch
https://github.com/open-webui/open-webui/releases/tag/v0.11.1	Release Notes
https://github.com/open-webui/open-webui/security/advisories/GHSA-wvm9-9g5j-623f	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*

History

18 Sep 2026, 14:43

Type	Values Removed	Values Added
CPE		cpe:2.3:a:openwebui:open_webui::::::::
First Time		Openwebui Openwebui open Webui
References	~~() https://github.com/open-webui/open-webui/commit/d799e81edbdc971c6deb096b6474cd95b93504bf -~~	() https://github.com/open-webui/open-webui/commit/d799e81edbdc971c6deb096b6474cd95b93504bf - Patch
References	~~() https://github.com/open-webui/open-webui/releases/tag/v0.11.1 -~~	() https://github.com/open-webui/open-webui/releases/tag/v0.11.1 - Release Notes
References	~~() https://github.com/open-webui/open-webui/security/advisories/GHSA-wvm9-9g5j-623f -~~	() https://github.com/open-webui/open-webui/security/advisories/GHSA-wvm9-9g5j-623f - Patch

Information

Published : 2026-09-10 15:17

Updated : 2026-09-18 14:43

NVD link : CVE-2026-88006

Mitre link : CVE-2026-88006

CVE.ORG link : CVE-2026-88006

JSON object : View

Products Affected

openwebui

open_webui

CWE

CWE-863

Incorrect Authorization

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