CVE-2026-26193 Details
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.44, aanually modifying chat history allows setting the `embeds` property on a response message, the content of which is loaded into an iFrame with a sandbox that has `allow-scripts` and `allow-same-origin` set, ignoring the "iframe Sandbox Allow Same Origin" configuration. This enables stored XSS on the affected chat. This also triggers when the chat is in the shared format. The result is a shareable link containing the payload that can be distributed to any other users on the instance. Version 0.6.44 fixes the issue.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-26193
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%).
0.04 Probability of exploitation activity being observed over the next 30 days (11th percentile)
CVSS score for CVE-2026-26193
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.
7.3 High
Products affected by CVE-2026-26193
Open Webui 0.6.0
Open Webui 0.6.10
Open Webui 0.6.13
Open Webui 0.6.15
Open Webui 0.6.16
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-2026-26193 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 802 25.16%
CN 461 14.46%
DE 438 13.74%
SG 127 3.98%
FR 125 3.92%
KR 119 3.73%
RU 98 3.07%
NL 81 2.54%
GB 81 2.54%
JP 68 2.13%

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CVE-2026-26193 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 1,826 80.80%
Telecommunications 332 14.69%
Education 48 2.12%
Media/Entertainment 9 0.40%
Business Services 9 0.40%
Retail 7 0.31%
Consumer Goods 6 0.27%
Government/Politics 6 0.27%
Finance 5 0.22%
Engineering 2 0.09%

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