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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-109296

Open WebUI before 0.11.4 Missing Authorization via Backend Index on Model Routes

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

open-webui open-webui

Default version status: unaffected

  • 0 to < 0.11.4affected
  • 0.11.4unaffected
pkg:pypi/open-webui

References