Ghost: Path Traversal Vulnerability in Ghost ImageSize Service

{
  "id": "746addc5bfa4f4dfa5b4a7614955728526b2f9ba207bfe02497b4b78a6385785",
  "url": "https://osv.dev/vulnerability/CVE-2026-105683",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Ghost: Path Traversal Vulnerability in Ghost ImageSize Service",
    "summary": "Ghost is a Node.js content management system. From 6.14.0 until 6.27.0, an input validation issue may have allowed staff users to access local files outside the intended data storage directories on the server. This issue is fixed in version 6.27.0.",
    "evidence": "osv:CVE-2026-105683",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-105683",
      "aliases": [
        "BIT-ghost-2026-103290",
        "BIT-ghost-2026-105683",
        "CVE-2026-103290",
        "CVE-2026-105683",
        "GHSA-83rp-q473-j88c"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tryghost/ghost",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e5a5cde533dfb2c2d8f9b60223b046075b5e4b13"
                },
                {
                  "fixed": "2daa6eba775c961ca41f2732b622d9deb86a39ee"
                },
                {
                  "fixed": "770d438fd9d352bbfccbe81dd890580a1d3fd6f0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "6.14.0"
                      },
                      {
                        "fixed": "6.27.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "770d438fd9d352bbfccbe81dd890580a1d3fd6f0"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "2daa6eba775c961ca41f2732b622d9deb86a39ee"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v6.27.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v6.26.0",
            "v6.25.1",
            "v6.25.0",
            "v6.24.0",
            "v6.23.0",
            "v6.22.1",
            "v6.22.0",
            "v6.21.0",
            "v6.21.2",
            "v6.21.1",
            "v6.20.1",
            "v6.20.0",
            "v6.19.4",
            "v6.19.3",
            "v6.19.2",
            "v6.19.0",
            "v6.19.1",
            "v6.18.2",
            "v6.18.0",
            "v6.17.1",
            "v6.17.0",
            "v6.16.1",
            "v6.16.0",
            "v6.15.0",
            "v6.14.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105683.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.100489678Z",
      "provider": "osv",
      "references": [
        "https://github.com/TryGhost/Ghost/releases/tag/v6.27.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105683.json",
        "https://github.com/TryGhost/Ghost/security/advisories/GHSA-83rp-q473-j88c",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-105683",
        "https://github.com/TryGhost/Ghost/commit/770d438fd9d352bbfccbe81dd890580a1d3fd6f0",
        "https://github.com/TryGhost/Ghost/pull/27217"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-35"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105683.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103290",
        "evidence": "/aliases"
      },
      {
        "value": "CVE-2026-105683",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495707,
  "published_at": "2026-10-05T19:31:28.855+00:00"
}