{"items":[{"id":"NVI-00016232","kind":"vulnerability","title":"n8n has a Stored XSS Vulnerability in its Form Trigger","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-q4fm-pjq6-m63g","CVE-2026-56358"],"plain_summary":"GitHub lists this reviewed advisory for n8n, 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-088d2476aeefb26336ed2e34f8abe702"],"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":"2026-07-20T21:31:47.000Z","value":"5.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-501c22e779e3b5a320991c58ee0f3e5c"},{"kind":"CVSS","as_of":"2026-10-29T19:17:22.690Z","value":"5.4 MEDIUM (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-088d2476aeefb26336ed2e34f8abe702"},{"kind":"CVSS","as_of":"2026-10-29T19:17:22.690Z","value":"5.1 MEDIUM (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-088d2476aeefb26336ed2e34f8abe702"}],"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-501c22e779e3b5a320991c58ee0f3e5c","url":"https://github.com/advisories/GHSA-q4fm-pjq6-m63g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q4fm-pjq6-m63g","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T22:35:18.117Z"},{"id":"sr-088d2476aeefb26336ed2e34f8abe702","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56358","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-56358","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:48:33.286Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-501c22e779e3b5a320991c58ee0f3e5c"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\nAn authenticated user with permission to create or modify workflows could exploit a flaw in the Form Trigger node's CSS sanitization to store a cross-site scripting (XSS) payload. The injected script executes persistently for every visitor of the published form, enabling form submission hijacking and phishing. The existing Content Security Policy prevents direct n8n session cookie theft but does not prevent script execution or form action manipulation.\n\n## Patches\nThe issue has been fixed in n8n versions 2.12.0, 2.11.2, and 1.123.25. Users should upgrade to one of these versions 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 Form Trigger node by adding `n8n-nodes-base.formTrigger` 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":[">= 2.0.0-rc.0, < 2.11.2"]},{"certainty":"source_listed","source_ids":["sr-501c22e779e3b5a320991c58ee0f3e5c"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\nAn authenticated user with permission to create or modify workflows could exploit a flaw in the Form Trigger node's CSS sanitization to store a cross-site scripting (XSS) payload. The injected script executes persistently for every visitor of the published form, enabling form submission hijacking and phishing. The existing Content Security Policy prevents direct n8n session cookie theft but does not prevent script execution or form action manipulation.\n\n## Patches\nThe issue has been fixed in n8n versions 2.12.0, 2.11.2, and 1.123.25. Users should upgrade to one of these versions 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 Form Trigger node by adding `n8n-nodes-base.formTrigger` 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":["< 1.123.25"]}],"null_published_at":"2026-11-08T19:53:44.019Z","source_updated_at":"2026-07-20T21:31:47.000Z","source_disclosed_at":"2026-03-27T18:05:47.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-03T22:35:18.117Z"},{"id":"NVI-00016232","kind":"vulnerability","title":"n8n has a Stored XSS Vulnerability in its Form Trigger","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q4fm-pjq6-m63g","CVE-2026-56358"],"plain_summary":"GitHub lists this reviewed advisory for n8n, 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-501c22e779e3b5a320991c58ee0f3e5c"],"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":"2026-07-20T21:31:47.000Z","value":"5.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-501c22e779e3b5a320991c58ee0f3e5c"}],"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-501c22e779e3b5a320991c58ee0f3e5c","url":"https://github.com/advisories/GHSA-q4fm-pjq6-m63g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q4fm-pjq6-m63g","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T22:35:18.117Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-501c22e779e3b5a320991c58ee0f3e5c"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\nAn authenticated user with permission to create or modify workflows could exploit a flaw in the Form Trigger node's CSS sanitization to store a cross-site scripting (XSS) payload. The injected script executes persistently for every visitor of the published form, enabling form submission hijacking and phishing. The existing Content Security Policy prevents direct n8n session cookie theft but does not prevent script execution or form action manipulation.\n\n## Patches\nThe issue has been fixed in n8n versions 2.12.0, 2.11.2, and 1.123.25. Users should upgrade to one of these versions 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 Form Trigger node by adding `n8n-nodes-base.formTrigger` 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":[">= 2.0.0-rc.0, < 2.11.2"]},{"certainty":"source_listed","source_ids":["sr-501c22e779e3b5a320991c58ee0f3e5c"],"technology":"n8n","known_exclusions":[],"conditions_summary":"## Impact\nAn authenticated user with permission to create or modify workflows could exploit a flaw in the Form Trigger node's CSS sanitization to store a cross-site scripting (XSS) payload. The injected script executes persistently for every visitor of the published form, enabling form submission hijacking and phishing. The existing Content Security Policy prevents direct n8n session cookie theft but does not prevent script execution or form action manipulation.\n\n## Patches\nThe issue has been fixed in n8n versions 2.12.0, 2.11.2, and 1.123.25. Users should upgrade to one of these versions 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 Form Trigger node by adding `n8n-nodes-base.formTrigger` 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":["< 1.123.25"]}],"null_published_at":"2026-11-04T10:04:27.921Z","source_updated_at":"2026-07-20T21:31:47.000Z","source_disclosed_at":"2026-03-27T18:05:47.000Z","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":"2026-11-03T22:35:18.117Z"}],"next_cursor":null,"snapshot_revision":"42594"}