{"data":{"id":"6c56e77c-471b-4149-86fa-be4c9346ca0c","title":"GHSA-v6qf-75pr-p96m: Open WebUI: Authenticated users can bypass model access control via exposed query parameter [AI-ASSISTED]","summary":"GHSA-v6qf-75pr-p96m affects Open WebUI. The bypass_filter parameter in the generate_chat_completion handlers in routers/openai.py and routers/ollama.py is bound from the query string by FastAPI, so an authenticated user can append ?bypass_filter=true to /openai/chat/completions or /ollama/api/chat. This skips the model access control check, letting any authenticated user invoke admin-restricted models through the server's configured connections.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-v6qf-75pr-p96m","publishedAt":"2026-05-14T20:25:24.000Z","cveId":"CVE-2026-45365","cweIds":null,"cvssScore":null,"cvssSeverity":"medium","severity":"medium","attackType":["other"],"issueType":"vulnerability","affectedPackages":["open-webui@<= 0.8.10 (fixed: 0.8.11)"],"affectedPackageNames":["open-webui"],"affectedPackageRefs":["pypi:open-webui"],"affectedVendors":[],"affectedVendorsRaw":["Open WebUI","OpenAI","Ollama"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.00267,"epssCheckedAt":"2026-10-23T12:08:28.635Z","kevDateAdded":null,"advisoryAliases":["GHSA-v6qf-75pr-p96m"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-05-14T20:25:24.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality","integrity"],"aiComponentTargeted":"api","llmSpecific":true,"classifierConfidence":0.93,"researchCategory":null,"atlasIds":null}}