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CVE-2026-44221— ArcadeDB: Cross-database authorization bypass and unsecured newly-created databases

CVSS 9.0 · Critical EPSS 0.04% · P11

Affected Version Matrix 1

VendorProductVersion RangeStatus
ArcadeDataarcadedb< 2.6.4affected
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I. Basic Information for CVE-2026-44221

Vulnerability Information
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Vulnerability Title
ArcadeDB: Cross-database authorization bypass and unsecured newly-created databases
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
arcadedb 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
arcadedb是Arcade Data开源的一个高性能多模型数据库管理系统。 ArcadeDB 2.6.4之前版本存在安全漏洞，该漏洞源于两个缺陷，ServerSecurityUser.getDatabaseUser()返回未初始化fileAccessMap的数据库用户，以及ArcadeDBServer.createDatabase()省略setSecurity调用，可能导致任何经过身份验证的主体绕过记录级和数据库级授权。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
ArcadeDataarcadedb < 2.6.4 -

II. Public POCs for CVE-2026-44221

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8244 chars
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III. Intelligence Information for CVE-2026-44221

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IV. Related Vulnerabilities

Same weakness: CWE-863

V. Comments for CVE-2026-44221

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