CVE-2026-54019

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI added collection-level ACL checks, but the patch can still be bypassed when Milvus multitenancy mode is enabled. The ACL allows unknown non-KB collection names as legacy/ephemeral collections. In Milvus multitenancy mode, that user-controlled collection name becomes a resource_id and is interpolated into a Milvus expression without escaping. This is caused by an incomplete fix for CVE-2026-44560 This vulnerability is fixed in 0.9.6.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/open-webui/open-webui/security/advisories/GHSA-p5cp-r7rg-qpxc	Exploit Mitigation Vendor Advisory
https://github.com/open-webui/open-webui/security/advisories/GHSA-p5cp-r7rg-qpxc	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

25 Jun 2026, 14:27

Type	Values Removed	Values Added
First Time		Openwebui open Webui Openwebui
CPE		cpe:2.3:a:openwebui:open_webui::::::::
References	~~() https://github.com/open-webui/open-webui/security/advisories/GHSA-p5cp-r7rg-qpxc -~~	() https://github.com/open-webui/open-webui/security/advisories/GHSA-p5cp-r7rg-qpxc - Exploit, Mitigation, Vendor Advisory

23 Jun 2026, 18:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-23 18:18

Updated : 2026-06-25 14:27

NVD link : CVE-2026-54019

Mitre link : CVE-2026-54019

CVE.ORG link : CVE-2026-54019

JSON object : View

Products Affected

openwebui

open_webui

CWE

CWE-862

Missing Authorization

CWE-943

Improper Neutralization of Special Elements in Data Query Logic

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