marker through 2.0.0 Path Traversal via upload filename

{
  "id": "4dd676c351cfc2aa135d6673de268e8f25ceb7c70e83802fa7e9c56407d20087",
  "url": "https://osv.dev/vulnerability/CVE-2026-85684",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "marker through 2.0.0 Path Traversal via upload filename",
    "summary": "marker through 2.0.0 contains a path traversal vulnerability in the FastAPI /marker/upload handler that fails to sanitize the file.filename parameter. Unauthenticated attackers can supply filenames containing directory traversal sequences to write arbitrary files to any location or delete existing files on the system.",
    "evidence": "osv:CVE-2026-85684",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-85684",
      "aliases": [
        "CVE-2026-85684"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/datalab-to/marker",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "947d7688c0739297a7b9eb08b1a463e3a6853981"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.0.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.0",
            "v1.10.2",
            "v1.10.1",
            "v1.10.0",
            "v1.9.3",
            "v1.9.2",
            "v1.9.1",
            "v1.9.0",
            "v1.8.5",
            "v1.8.4",
            "v1.8.3",
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            "v1.5.1",
            "v1.5.0",
            "v1.4.0",
            "v1.3.5",
            "v1.3.4",
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.7",
            "v1.2.6",
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
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            "v0.3.9",
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            "v0.3.7",
            "v0.3.6",
            "v0.3.5",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.17",
            "v0.2.16",
            "v0.2.15",
            "v0.2.14",
            "v0.2.13",
            "v0.2.12",
            "v0.2.11",
            "v0.2.10",
            "v0.2.9",
            "v0.2.8",
            "v0.2.7",
            "v0.2.6",
            "v0.2.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85684.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.683255244Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85684.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-85684",
        "https://www.vulncheck.com/advisories/marker-through-2.0.0-path-traversal-via-upload-filename",
        "https://github.com/datalab-to/marker/issues/1047",
        "https://github.com/datalab-to/marker",
        "https://github.com/datalab-to/marker/blob/v2.0.0/marker/scripts/server.py"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-73"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85684.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-85684",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517051,
  "published_at": "2026-09-04T14:32:30.312+00:00"
}