CVE-2026-70485 Details
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.0, Open WebUI checked whether a user-supplied URL destination was globally routable by applying ipaddress.is_global to the literal IPv6 address without examining IPv4 addresses embedded in transition encodings. On a deployment with a NAT64 gateway, any verified user could wrap an internal or cloud-metadata IPv4 address in the NAT64 well-known prefix, pass the filter, and receive the internal response body through RAG URL ingestion, URL-to-markdown conversion, or web-search content retrieval. This issue is fixed in 0.11.0.
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Exploit prediction scoring system (EPSS) score for CVE-2026-70485
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%).
0.35 Probability of exploitation activity being observed over the next 30 days (29th percentile)
CVSS score for CVE-2026-70485
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-2026-70485
Open Webui 0.9.0
Open Webui 0.9.1
Open Webui 0.9.2
Open Webui 0.9.3
Open Webui 0.9.4
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-2026-70485 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 1,046 25.76%
DE 599 14.75%
CN 450 11.08%
GB 175 4.31%
KR 165 4.06%
SG 154 3.79%
FR 138 3.40%
RU 124 3.05%
JP 100 2.46%
NL 70 1.72%

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CVE-2026-70485 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 2,403 83.70%
Telecommunications 352 12.26%
Education 59 2.06%
Retail 11 0.38%
Government/Politics 10 0.35%
Business Services 6 0.21%
Media/Entertainment 5 0.17%
Engineering 4 0.14%
Transportation 4 0.14%
Manufacturing 4 0.14%

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