{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "26.7.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8ca396c07e471a0b97fee075eeb956b5e24a23be"
            },
            {
              "fixed": "5347ff5fb225f2b1e3208faf7060facde020cb43"
            }
          ],
          "repo": "https://github.com/arcadedata/arcadedb",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-48qw-824m-86pr"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-269",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65831.json"
  },
  "details": "ArcadeDB is a Multi-Model DBMS. Prior to 26.7.1, a reader-role user can submit POST /api/v1/command/{database} with language: js because PolyglotQueryEngine.command, PolyglotQueryEngine.analyze, and PolyglotQueryEngine.registerFunctions do not enforce database-administrator authorization. GraalPolyglotEngine also permits scripts to bypass the allowedPackages whitelist by reflecting from the bound database object through database.getClass().getClassLoader().loadClass to arbitrary host classes. These cooperating defects allow a read-only database user to read arbitrary host files outside the database scope. Process creation is already blocked, so OS command execution is not confirmed. The issue is distinct from CVE-2026-44221, CVE-2026-54076, and CVE-2026-54077. This issue is fixed in version 26.7.1.",
  "id": "CVE-2026-65831",
  "modified": "2026-09-17T03:30:30.036918735Z",
  "published": "2026-09-15T15:18:32.339Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ArcadeData/arcadedb/releases/tag/26.7.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-48qw-824m-86pr"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65831.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65831"
    },
    {
      "type": "FIX",
      "url": "https://github.com/ArcadeData/arcadedb/commit/8ca396c07e471a0b97fee075eeb956b5e24a23be"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ArcadeDB: Privilege escalation via reader role in /api/v1/command JS scripting language — arbitrary host file read"
}