makafeli n8n-workflow-builder update_node_from_file server.cjs path traversal

{
  "id": "9099b11bff4fd472ef11d97e1201f814ce292f6640d3cca33e239007d45a8fda",
  "url": "https://osv.dev/vulnerability/CVE-2026-15521",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "makafeli n8n-workflow-builder update_node_from_file server.cjs path traversal",
    "summary": "A vulnerability was identified in makafeli n8n-workflow-builder up to 0.11.0. Affected is an unknown function of the file build/server.cjs of the component update_node_from_file. The manipulation of the argument filePath leads to path traversal. An attack has to be approached locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:CVE-2026-15521",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-15521",
      "aliases": [
        "CVE-2026-15521"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/makafeli/n8n-workflow-builder",
              "type": "GIT",
              "events": [
                {
                  "introduced": "629751da7419e34ae6963c7ae0adc452b0c8ebc0"
                },
                {
                  "last_affected": "629751da7419e34ae6963c7ae0adc452b0c8ebc0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.1"
                      },
                      {
                        "last_affected": "0.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.10"
                      },
                      {
                        "last_affected": "0.10"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.1",
            "v0.10.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15521.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:35.663072344Z",
      "provider": "osv",
      "references": [
        "https://github.com/makafeli/n8n-workflow-builder/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15521.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-15521",
        "https://vuldb.com/cve/CVE-2026-15521",
        "https://vuldb.com/submit/854522",
        "https://vuldb.com/vuln/377850",
        "https://github.com/makafeli/n8n-workflow-builder/issues/28",
        "https://vuldb.com/vuln/377850/cti"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "VulDB",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.2"
                  },
                  {
                    "last_affected": "0.2"
                  },
                  {
                    "introduced": "0.3"
                  },
                  {
                    "last_affected": "0.3"
                  },
                  {
                    "introduced": "0.4"
                  },
                  {
                    "last_affected": "0.4"
                  },
                  {
                    "introduced": "0.5"
                  },
                  {
                    "last_affected": "0.5"
                  },
                  {
                    "introduced": "0.6"
                  },
                  {
                    "last_affected": "0.6"
                  },
                  {
                    "introduced": "0.7"
                  },
                  {
                    "last_affected": "0.7"
                  },
                  {
                    "introduced": "0.8"
                  },
                  {
                    "last_affected": "0.8"
                  },
                  {
                    "introduced": "0.9"
                  },
                  {
                    "last_affected": "0.9"
                  },
                  {
                    "introduced": "0.11.0"
                  },
                  {
                    "last_affected": "0.11.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15521.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-15521",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503030,
  "published_at": "2026-07-13T01:30:09.205+00:00"
}