BaseFortify

Publication date: 2026-01-23

Last updated on: 2026-01-30

Assigner: Zero Day Initiative

Description

Open WebUI load_tool_module_by_id Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Open WebUI. Authentication is required to exploit this vulnerability. The specific flaw exists within the load_tool_module_by_id function. The issue results from the lack of proper validation of a user-supplied string before using it to execute Python code. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28257.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-23

Last Modified

2026-01-30

Generated

2026-07-06

AI Q&A

2026-01-23

EPSS Evaluated

2026-07-05

NVD

CVE-2026-0766

EUVD

EUVD-2026-4471

Affected Vendors & Products

Vendor	Product	Version / Range
openwebui	open_webui	0.6.32

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

Executive Summary

This vulnerability is a remote code execution flaw in Open WebUI's load_tool_module_by_id function. It occurs because the function does not properly validate a user-supplied string before using it to execute Python code. An attacker who is authenticated can exploit this to run arbitrary code with the privileges of the service account running Open WebUI. [1]

Impact Analysis

If exploited, this vulnerability allows an authenticated attacker to execute arbitrary code on the affected system with the privileges of the service account running Open WebUI. This can lead to full compromise of the system, including unauthorized access, data manipulation, or disruption of services. [1]

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