CVE-2026-109296
MEDIUM
NVD
CVSS Score
4.3
Severity
MEDIUM
Published
Oct 12, 2026
Vendor
unknown
Description
Open WebUI before 0.11.4 contains a missing authorization vulnerability that allows authenticated users to reach disabled model provider backends by supplying an explicit backend index. Attackers can pass the index as a path segment or query parameter on Ollama and OpenAI-compatible listing routes to trigger requests carrying configured API keys, read version strings, and enumerate connections.