CVE-2026-45401

Open WebUI · Open WebUI

A security vulnerability has been identified in the Open WebUI platform, an AI interface designed for self-hosted, offline environments.

Executive summary

The Open WebUI platform contains a high-severity vulnerability that could facilitate unauthorized actions within the self-hosted AI environment.

Vulnerability

This vulnerability affects the core functionality of the Open WebUI, potentially allowing for unauthorized exploitation of the platform's features.

Business impact

With a CVSS score of 8.5, this vulnerability represents a substantial threat to the confidentiality and availability of the affected system. Failure to mitigate this risk could expose the organization to unauthorized access, potentially leading to the loss or manipulation of internal AI model data.

Remediation

Immediate Action: Closely track vendor communications regarding this CVE and apply the latest software updates as soon as they are published.

Proactive Monitoring: Monitor for unusual system activity or unexpected changes to the configuration of the Open WebUI instance.

Compensating Controls: Restrict access to the management interface to trusted internal IP ranges only to reduce the risk of remote exploitation.

Exploitation status

Public Exploit Available: false

Analyst recommendation

The severity of this issue warrants a proactive approach to security. Administrators are advised to maintain a strict patching cadence and verify the integrity of their Open WebUI installations to ensure security controls remain effective.