CVE-2026-87016 Details
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.41 until 0.11.1, get_user_by_oauth_sub and get_user_by_scim_external_id in backend/open_webui/models/users.py used JSON contains matching that compiled to SQL LIKE substring matching on SQLite. An OAuth subject containing percent or underscore wildcard characters could resolve to a different stored identity, potentially selecting an administrator account and issuing the attacker that account's session; PostgreSQL deployments were not affected. This issue is fixed in version 0.11.1.
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Exploit prediction scoring system (EPSS) score for CVE-2026-87016
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%).
0.6 Probability of exploitation activity being observed over the next 30 days (48th percentile)
CVSS score for CVE-2026-87016
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.
8.1 High
Products affected by CVE-2026-87016
Open Webui 0.9.1
Open Webui 0.9.2
Open Webui 0.9.3
Open Webui 0.9.4
Open Webui 0.9.5
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-2026-87016 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 2,294 26.80%
DE 1,250 14.60%
CN 862 10.07%
GB 332 3.88%
FR 311 3.63%
SG 301 3.52%
RU 299 3.49%
KR 283 3.31%
JP 198 2.31%
CA 152 1.78%

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CVE-2026-87016 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 5,030 82.04%
Telecommunications 837 13.65%
Education 135 2.20%
Retail 19 0.31%
Media/Entertainment 18 0.29%
Government/Politics 15 0.24%
Engineering 14 0.23%
Manufacturing 11 0.18%
Utilities 9 0.15%
Business Services 9 0.15%

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