boxpositron with-context-mcp index.ts project_folder path traversal

{
  "id": "9b8c6ec09080d5b157c13580daa453e89b9c424a174606fd7b938600f8f6d51d",
  "url": "https://osv.dev/vulnerability/CVE-2026-81491",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "boxpositron with-context-mcp index.ts project_folder path traversal",
    "summary": "A flaw has been found in boxpositron with-context-mcp up to 3.0.7. This affects the function ingest_notes/teleport_notes/sync_notes/project_folder of the file src/index.ts. Executing a manipulation can lead to path traversal. It is possible to launch the attack remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:CVE-2026-81491",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-81491",
      "aliases": [
        "CVE-2026-81491"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/boxpositron/with-context-mcp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "30640056dc89b1210776bc1c5c06802fa7f42b9c"
                },
                {
                  "last_affected": "289e670c3c782409e49b8d0eb20ce116566d9f74"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "last_affected": "3.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.0.1"
                      },
                      {
                        "last_affected": "3.0.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.0.2"
                      },
                      {
                        "last_affected": "3.0.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.0.4"
                      },
                      {
                        "last_affected": "3.0.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.0.5"
                      },
                      {
                        "last_affected": "3.0.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.0.6"
                      },
                      {
                        "last_affected": "3.0.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.0.7"
                      },
                      {
                        "last_affected": "3.0.7"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.0.7"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.0.0",
            "3.0.1",
            "3.0.2",
            "3.0.4",
            "3.0.5",
            "3.0.6",
            "3.0.7",
            "v3.0.7",
            "v3.0.6",
            "v3.0.5",
            "v3.0.4",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81491.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.504491665Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81491.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-81491",
        "https://vuldb.com/cve/CVE-2026-81491",
        "https://vuldb.com/submit/887138",
        "https://vuldb.com/vuln/395981",
        "https://vuldb.com/vuln/395981/cti"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "VulDB",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "3.0.3"
                  },
                  {
                    "last_affected": "3.0.3"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81491.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-81491",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497660,
  "published_at": "2026-08-27T02:15:09.57+00:00"
}