{"cve":"CVE-2026-44221","nvd":{"published":"2026-05-12T20:16:43.020","modified":"2026-10-26T18:10:00.173","status":"Deferred","description":"ArcadeDB is a Multi-Model DBMS. Starting in version 21.10.1 and prior to version 26.4.2, authenticated users and API tokens scoped to a specific database could read, write, and mutate schema on any other database on the same server. Two distinct defects contributed: (1) ServerSecurityUser.getDatabaseUser() returned a DB user with an uninitialized fileAccessMap, which requestAccessOnFile treated as allow-all; (2) ArcadeDBServer.createDatabase() omitted factory.setSecurity(...) so any database created via POST /api/v1/server {\"command\":\"create database X\"} had its entire record-level authorization system silently disabled. In combination, record-level and database-level authorization could be bypassed by any authenticated principal. This vulnerability is fixed in 26.4.2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","score":9.0},"cwes":["CWE-863"],"references":["https://github.com/ArcadeData/arcadedb/commit/04110c06315da55604ac107f71fe7182f3a3deb8","https://github.com/ArcadeData/arcadedb/commit/9e708f116b","https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-fxc7-fm93-6q77"],"products":[],"source":"nvd","synced_at":"2026-10-26T18:27:13.530666824+00:00"},"epss":{"cve":"CVE-2026-44221","score":0.00338,"percentile":0.26978,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-fxc7-fm93-6q77","url":"https://osv.dev/vulnerability/GHSA-fxc7-fm93-6q77","summary":"ArcadeDB vulnerable to cross-database authorization bypass and unsecured newly-created databases","modified":"2026-08-03T20:45:22.162757757Z","packages":[{"ecosystem":"Maven","name":"com.arcadedb:arcadedb-server","purl":"pkg:maven/com.arcadedb/arcadedb-server","ranges":[">=21.10.1 <26.4.2"],"fixed":["26.4.2"]}]}],"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."]}