Incorrect authorization in Open WebUI - #VU135956
Published: June 30, 2026
Vulnerability identifier: #VU135956
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-863
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 bypass authorization controls and cause a denial of service through billable resource consumption.
The vulnerability exists due to incorrect authorization in the POST /api/v1/images/edit endpoint when handling image edit requests. A remote user can send a specially crafted request to bypass authorization controls and cause a denial of service through billable resource consumption.
The issue affects verified non-admin users and exposes an administrator-only image-editing capability through the direct route.
Remediation
Install security update from vendor's website.