{"items":[{"id":"NVI-00016321","kind":"vulnerability","title":"n8n: Microsoft SQL Node Prototype Pollution","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-x6p3-m6h9-fx7r","CVE-2026-54312"],"plain_summary":"GitHub lists this reviewed advisory for n8n. 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-68219a2f6525265f2eee8b5ae0da47a2"],"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":"2026-07-20T13:39:38.000Z","value":"8.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-68219a2f6525265f2eee8b5ae0da47a2"}],"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-68219a2f6525265f2eee8b5ae0da47a2","url":"https://github.com/advisories/GHSA-x6p3-m6h9-fx7r","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-x6p3-m6h9-fx7r","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T02:49:06.528Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-68219a2f6525265f2eee8b5ae0da47a2"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\nAn authenticated user with permission to create or modify workflows could achieve global prototype pollution via the Microsoft SQL node by supplying a crafted value as the table parameter. This pollutes `Object.prototype` process-wide for the lifetime of the n8n server process, causing application-wide validation failures and rendering the n8n instance completely non-functional until restarted.\n\n## Patches\nThe issue has been fixed in n8n version 2.24.0. Users should upgrade to this version or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Limit workflow creation and editing permissions to fully trusted users only.\n- Disable the Microsoft SQL node by adding `n8n-nodes-base.microsoftSql` to the `NODES_EXCLUDE` environment variable.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","public_affected_ranges":["< 2.24.0"]}],"null_published_at":"2026-11-04T10:04:27.931Z","source_updated_at":"2026-07-20T13:39:38.000Z","source_disclosed_at":"2026-06-16T22:38:52.000Z","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":"2026-11-04T02:49:06.528Z"}],"next_cursor":null,"snapshot_revision":"39771"}