{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.6.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "697ef59e3b58bebc5c21a9e482e4f5643390f316"
            }
          ],
          "repo": "https://github.com/ghostfolio/ghostfolio",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59709.json"
  },
  "details": "Ghostfolio's PUT /api/v1/portfolio/holding/:dataSource/:symbol/tags endpoint fails to verify Access.permissions field when processing the Impersonation-Id header, allowing read-only access grantees to modify portfolio holding tags. Attackers with valid read-only share tokens can assign or remove tags on victim holdings, corrupting portfolio categorization and reports.",
  "id": "CVE-2026-59709",
  "modified": "2026-07-15T01:48:58.209027408Z",
  "published": "2026-07-07T14:12:23.972Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59709.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59709"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/ghostfolio-unauthorized-portfolio-holding-tag-modification-via-missing-permission-check"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ghostfolio/ghostfolio/issues/7196"
    },
    {
      "type": "FIX",
      "url": "https://github.com/ghostfolio/ghostfolio/commit/697ef59e3b58bebc5c21a9e482e4f5643390f316"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ghostfolio/ghostfolio"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Ghostfolio - Unauthorized Portfolio Holding Tag Modification via Missing Permission Check"
}