Cross-site request forgery in Open WebUI - #VU130938
Published: May 11, 2026
Vulnerability identifier: #VU130938
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-352
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 cause a denial of service and disclose sensitive information.
The vulnerability exists due to improper input validation in image uploading and rendering functionality when processing user-supplied image urls. A remote user can set an image url to a malicious endpoint to cause a denial of service and disclose sensitive information.
User interaction is required, as a victim must view the compromised image, such as in a profile picture, shared chat, shared note, or model image.
Remediation
Install security update from vendor's website.