CVE-2026-87016

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.41 until 0.11.1, get_user_by_oauth_sub and get_user_by_scim_external_id in backend/open_webui/models/users.py used JSON contains matching that compiled to SQL LIKE substring matching on SQLite. An OAuth subject containing percent or underscore wildcard characters could resolve to a different stored identity, potentially selecting an administrator account and issuing the attacker that account's session; PostgreSQL deployments were not affected. This issue is fixed in version 0.11.1.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/open-webui/open-webui/commit/73c1f5806aeb6345dad5de8f5aa26d1f3d0bef80	Patch
https://github.com/open-webui/open-webui/pull/28624	Issue Tracking 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-wpmr-8h3q-fwj7	Exploit Vendor Advisory
https://github.com/open-webui/open-webui/security/advisories/GHSA-wpmr-8h3q-fwj7	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-09-09 22:18

Updated : 2026-09-15 15:29

NVD link : CVE-2026-87016

Mitre link : CVE-2026-87016

CVE.ORG link : CVE-2026-87016

JSON object : View

Products Affected

openwebui

open_webui

CWE

CWE-155

Improper Neutralization of Wildcards or Matching Symbols

CWE-287

Improper Authentication

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