{"items":[{"id":"NVI-00016236","kind":"vulnerability","title":"n8n: Credential exfiltration via Allowed HTTP Request Domains Bypass","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-3875-8gcx-7v46","CVE-2026-56348"],"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-50fbc3144810eb33e63e23cdf3711583"],"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":"2026-07-20T13:34:36.000Z","value":"9.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-50fbc3144810eb33e63e23cdf3711583"}],"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-50fbc3144810eb33e63e23cdf3711583","url":"https://github.com/advisories/GHSA-3875-8gcx-7v46","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-3875-8gcx-7v46","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T02:49:06.528Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-50fbc3144810eb33e63e23cdf3711583"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\nThe `POST /rest/dynamic-node-parameters/options` endpoint allowed any authenticated user to cause the n8n server to issue HTTP requests including credentials bypassing the intended restrictions on which hosts could be contacted for that credential (Allowed HTTP Request Domains). The user needed to be authenticated and have access to the credential.\n\n## Patches\nThe issue has been fixed in n8n version 2.20.0. 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- Restrict n8n access to fully trusted users only.\n- Limit credential sharing to users who genuinely require access to those credentials.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","public_affected_ranges":["< 2.20.0"]}],"null_published_at":"2026-11-04T10:04:27.921Z","source_updated_at":"2026-07-20T13:34:36.000Z","source_disclosed_at":"2026-05-19T16:17:43.000Z","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":"42594"}