Open WebUI's Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show

Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show Affected ComponentOllama proxy endpoints missing model access control:- backend/openwebui/routers/ollama.py lines 955-995, generatecompletion- backend/openwebui/routers/ollama.py lines 835-881, embed-...

PYSEC-2026-2754 Open WebUI's Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show

Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show Affected Component Ollama proxy endpoints missing model access control: - backend/openwebui/routers/ollama.py lines 955-995, generatecompletion - backend/openwebui/routers/ollama.py lines 835-881, emb...

CVE-2026-54021: Incorrect Authorization

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, several direct, index-addressed Ollama proxy routes accept a caller-supplied urlidx path parameter and use it as a raw index into the admin-configured OLLAMABASEURLS list. Access...

PT-2026-50592

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.6 Description Several direct, index-addressed Ollama proxy routes allow authenticated users to bypass backend isolation. The system accepts a caller-supplied url idx path parameter and uses it as a raw index in...

GHSA-RCVP-6FGW-C7FH Open WebUI's Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show

Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show Affected Component Ollama proxy endpoints missing model access control: - backend/openwebui/routers/ollama.py lines 955-995, generatecompletion - backend/openwebui/routers/ollama.py lines 835-881, emb...

Open WebUI's Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show

Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show Affected Component Ollama proxy endpoints missing model access control: - backend/openwebui/routers/ollama.py lines 955-995, generatecompletion - backend/openwebui/routers/ollama.py lines 835-881, emb...

PT-2026-39280

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.0 Description Four Ollama proxy endpoints accept any model name from the user and forward the request to the Ollama backend without verifying if the user is authorized to access that model. While these endpoint...