{"cve":"CVE-2026-65831","nvd":{"published":"2026-09-15T16:17:22.387","modified":"2026-09-30T17:51:56.193","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","score":7.7},"cwes":["CWE-269","CWE-863"],"references":["https://github.com/ArcadeData/arcadedb/commit/8ca396c07e471a0b97fee075eeb956b5e24a23be","https://github.com/ArcadeData/arcadedb/releases/tag/26.7.1","https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-48qw-824m-86pr"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-65831","score":0.00598,"percentile":0.48343,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-48qw-824m-86pr","url":"https://osv.dev/vulnerability/GHSA-48qw-824m-86pr","summary":"ArcadeDB: Privilege escalation via reader role in /api/v1/command JS scripting language — arbitrary host file read","modified":"2026-09-16T03:56:06.395820071Z","packages":[{"ecosystem":"Maven","name":"com.arcadedb:arcadedb-server","purl":"pkg:maven/com.arcadedb/arcadedb-server","ranges":["<26.7.1"],"fixed":["26.7.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}