CVE-2026-45350 Details
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, there is a vulnerability in chat completion API, which allows attackers to bypass tool restrictions, potentially enabling unauthorized actions or access. In the chat_completion API, the parameters tool_ids and tool_servers are supplied by the user. These parameters are used to create a tools_dict by the middleware. This is then used by get_tool_by_id to retrieve the appropriate tool. However, there is no checks in that ensures the user that uses the API has permission to use the tool, meaning that a user can invoke any server tool by supplying the correct tool_id or tool_servers parameters via the chat completion API. Moreover, the authentication token stored in the server would be used when invoking the tool, so the tool will be invoked with the server privilege. This vulnerability is fixed in 0.8.6.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-45350
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.26 Probability of exploitation activity being observed over the next 30 days (17th percentile)
CVSS score for CVE-2026-45350
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
7.1 High
Products affected by CVE-2026-45350
Open Webui 0.5.15
Open Webui 0.5.18
Open Webui 0.6.11
Open Webui 0.6.14
Open Webui 0.6.20
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-45350 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 1,300 25.31%
DE 762 14.84%
CN 728 14.17%
FR 205 3.99%
SG 190 3.70%
RU 165 3.21%
GB 161 3.13%
KR 152 2.96%
JP 117 2.28%
NL 111 2.16%

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CVE-2026-45350 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 3,090 83.65%
Telecommunications 449 12.15%
Education 76 2.06%
Retail 13 0.35%
Government/Politics 13 0.35%
Business Services 11 0.30%
Utilities 10 0.27%
Consumer Goods 8 0.22%
Media/Entertainment 8 0.22%
Engineering 5 0.14%

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