Improper Neutralization of Special Elements in Data Query Logic in Open WebUI - CVE-2026-54019
Published: June 30, 2026
Vulnerability identifier: #VU135942
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-54019
CWE-ID: CWE-943
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Open WebUI
Affected software:
Open WebUI
Open WebUI
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper neutralization of special elements in data query logic in the Milvus multitenancy retrieval query handling when processing user-supplied collection names. A remote user can send a specially crafted query request to disclose sensitive information.
Only deployments using Milvus multitenancy mode are vulnerable, and no user interaction is required.
How to mitigate CVE-2026-54019
Install security update from vendor's website.