{"items":[{"id":"NVI-00015023","kind":"vulnerability","title":"Open WebUI: Model meta.knowledge read-only file access can be upgraded to file write/delete","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2xwm-4h2q-ggfx","CVE-2026-59212"],"plain_summary":"GitHub lists this reviewed advisory for open-webui. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-106ff3ddf5596f6877def3287243ee85"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-24T20:51:09.000Z","value":"5.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-09aa284a7f440edbff594fb47efd9027"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.420%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.36384. Missing scores are unknown.","source_id":"sr-106ff3ddf5596f6877def3287243ee85"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-09aa284a7f440edbff594fb47efd9027","url":"https://github.com/advisories/GHSA-2xwm-4h2q-ggfx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2xwm-4h2q-ggfx","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:59:13.529Z"},{"id":"sr-106ff3ddf5596f6877def3287243ee85","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-59212","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.789Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-09aa284a7f440edbff594fb47efd9027"],"technology":"open-webui","known_exclusions":[],"conditions_summary":"## Summary\n\nCurrent `main` and `v0.9.6` still allow an authenticated user to turn read-only access to another user's file into write/delete access by attaching that file ID to an attacker-controlled workspace model.\n\nThis is an incomplete-fix variant of `GHSA-vjqm-6gcc-62cr`. The current fix adds `_verify_knowledge_file_access()`, but the validator only checks `has_access_to_file(file_id, \"read\", user)`. The file write/delete routes later trust `has_access_to_file(file_id, \"write\", user)`, and that function grants access through any writable model whose `meta.knowledge` contains the file ID.\n\nThe PoV includes a negative control showing the current validator rejects an inaccessible arbitrary file ID. The residual issue is narrower: a file ID that is readable only through a KB read grant is accepted into direct model file metadata, then the same model metadata satisfies later file write/delete checks.\n\n## Technical Details\n\n`backend/open_webui/routers/models.py::_verify_knowledge_file_access()` accepts model `meta.knowledge` file entries when the caller can read the file:\n\n```python\nif not await has_access_to_file(file_id, 'read', user, db=db):\n    raise HTTPException(...)\n```\n\n`back","public_affected_ranges":[">= 0.9.6, < 0.10.0"]}],"null_published_at":"2026-11-06T00:29:57.288Z","source_updated_at":"2026-07-24T20:51:09.000Z","source_disclosed_at":"2026-07-24T20:51:09.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-03T09:59:13.529Z"},{"id":"NVI-00015023","kind":"vulnerability","title":"Open WebUI: Model meta.knowledge read-only file access can be upgraded to file write/delete","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2xwm-4h2q-ggfx","CVE-2026-59212"],"plain_summary":"GitHub lists this reviewed advisory for open-webui. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-09aa284a7f440edbff594fb47efd9027"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-24T20:51:09.000Z","value":"5.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-09aa284a7f440edbff594fb47efd9027"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-09aa284a7f440edbff594fb47efd9027","url":"https://github.com/advisories/GHSA-2xwm-4h2q-ggfx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2xwm-4h2q-ggfx","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:59:13.529Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-09aa284a7f440edbff594fb47efd9027"],"technology":"open-webui","known_exclusions":[],"conditions_summary":"## Summary\n\nCurrent `main` and `v0.9.6` still allow an authenticated user to turn read-only access to another user's file into write/delete access by attaching that file ID to an attacker-controlled workspace model.\n\nThis is an incomplete-fix variant of `GHSA-vjqm-6gcc-62cr`. The current fix adds `_verify_knowledge_file_access()`, but the validator only checks `has_access_to_file(file_id, \"read\", user)`. The file write/delete routes later trust `has_access_to_file(file_id, \"write\", user)`, and that function grants access through any writable model whose `meta.knowledge` contains the file ID.\n\nThe PoV includes a negative control showing the current validator rejects an inaccessible arbitrary file ID. The residual issue is narrower: a file ID that is readable only through a KB read grant is accepted into direct model file metadata, then the same model metadata satisfies later file write/delete checks.\n\n## Technical Details\n\n`backend/open_webui/routers/models.py::_verify_knowledge_file_access()` accepts model `meta.knowledge` file entries when the caller can read the file:\n\n```python\nif not await has_access_to_file(file_id, 'read', user, db=db):\n    raise HTTPException(...)\n```\n\n`back","public_affected_ranges":[">= 0.9.6, < 0.10.0"]}],"null_published_at":"2026-11-03T10:03:26.536Z","source_updated_at":"2026-07-24T20:51:09.000Z","source_disclosed_at":"2026-07-24T20:51:09.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-03T09:59:13.529Z"}],"next_cursor":null,"snapshot_revision":"42594"}