Is this vulnerability remotely exploitable?

It can be exploited remotely if the Open WebUI instance is accessible over the network and an attacker can obtain access to an account or use any anonymous/guest capabilities. The vulnerability does not inherently require local system access.

What level of access does an attacker need to exploit it?

Typically, an attacker needs at least some level of application access (e.g., a normal user account or guest access if enabled). The broken access control then allows that user to access tool values beyond what their role or identity should normally permit.

What is the safest general fix pattern for this issue?

The safest pattern is to implement strict, server-side authorization checks for every operation involving tool values, based on resource ownership and explicit permissions. Centralize authorization logic so all tool-related endpoints pass through the same permission enforcement layer.

Severity:

HIGH RISK

(7.7)

Broken Access Control (CWE-285) in Open WebUI Tool Values

CVE-2026-34222

Published:

Apr 1, 2026

Status:

Awaiting Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Broken Access Control

CWE:

CWE-285

Impact:

Unauthorized Access and Manipulation of Tool Configuration or Data

Severity:

HIGH RISK

(7.7)

CVSS Version:

3.1

Vulnerability Type

Category:

Broken Access Control

CWE:

CWE-285

Impact:

Unauthorized Access and Manipulation of Tool Configuration or Data

Severity:

HIGH RISK

(7.7)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Broken Access Control (CWE-285) in Open WebUI Tool Values

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare