ArcadeDB is a Multi-Model DBMS. Prior to 2.6.4, 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 2.6.4.

Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-fxc7-fm93-6q77 ArcadeDB vulnerable to cross-database authorization bypass and unsecured newly-created databases
Fixes

Solution

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Workaround

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History

Tue, 12 May 2026 20:15:00 +0000

Type Values Removed Values Added
Description ArcadeDB is a Multi-Model DBMS. Prior to 2.6.4, 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 2.6.4.
Title ArcadeDB: Cross-database authorization bypass and unsecured newly-created databases
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-12T19:53:39.307Z

Reserved: 2026-05-05T15:42:40.518Z

Link: CVE-2026-44221

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-12T20:16:43.020

Modified: 2026-05-12T20:16:43.020

Link: CVE-2026-44221

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-12T21:45:05Z

Weaknesses