CVE-2026-45365 Details
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, an internal-only bypass_filter parameter is exposed on the /openai/chat/completions and /ollama/api/chat HTTP endpoints via FastAPI query string binding, allowing any authenticated user to append ?bypass_filter=true and bypass model access control checks to invoke admin-restricted models. This vulnerability is fixed in 0.8.11.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-45365
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%).
0.19 Probability of exploitation activity being observed over the next 30 days (9th percentile)
CVSS score for CVE-2026-45365
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.
5.4 Medium
Products affected by CVE-2026-45365
Open Webui 0.5.20
Open Webui 0.5.4
Open Webui 0.5.6
Open Webui 0.5.7
Open Webui 0.5.9
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-2026-45365 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 1,585 25.35%
DE 949 15.18%
CN 829 13.26%
FR 268 4.29%
SG 229 3.66%
RU 213 3.41%
GB 203 3.25%
KR 175 2.80%
NL 137 2.19%
JP 132 2.11%

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CVE-2026-45365 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 3,780 84.06%
Telecommunications 535 11.90%
Education 92 2.05%
Government/Politics 13 0.29%
Retail 13 0.29%
Utilities 11 0.24%
Business Services 11 0.24%
Media/Entertainment 10 0.22%
Consumer Goods 10 0.22%
Engineering 9 0.20%

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