{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "26.7.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f2f3d880597d1d2310d61267e08ff5485504b4b5"
            }
          ],
          "repo": "https://github.com/arcadedata/arcadedb",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6x73-v3rc-f57c"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68578.json"
  },
  "details": "ArcadeDB versions before 26.7.3 fail to bind the authenticated principal in the MCP HTTP transport, causing all engine permission checks to silently pass as no-ops. Non-root MCP-allowed users can perform arbitrary database writes, DDL, schema mutations, and execute arbitrary JavaScript code via the query tool.",
  "id": "CVE-2026-68578",
  "modified": "2026-09-06T03:30:29.162048119Z",
  "published": "2026-08-02T12:15:25.820Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-6x73-v3rc-f57c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68578.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68578"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/arcadedb-authentication-bypass-via-mcp-transport"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ArcadeDB before 26.7.3 Authentication Bypass via MCP Transport"
}