ArcadeData arcadedb up to 2.6.3 ServerSecurityUser.getDatabaseUser authorization

Summaryinfo

A vulnerability categorized as critical has been discovered in ArcadeData arcadedb up to 2.6.3. The impacted element is the function ServerSecurityUser.getDatabaseUser. Such manipulation leads to authorization. This vulnerability is uniquely identified as CVE-2026-44221. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in ArcadeData arcadedb up to 2.6.3. It has been rated as critical. Affected by this issue is the function ServerSecurityUser.getDatabaseUser. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-44221 since 05/05/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available.

Upgrading to version 2.6.4 eliminates this vulnerability. Applying the patch 04110c06315da55604ac107f71fe7182f3a3deb8 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• ArcadeData

Name

• arcadedb

Version

• 2.6.0
• 2.6.1
• 2.6.2
• 2.6.3

License

• open-source

Website

• Product: https://github.com/ArcadeData/arcadedb/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion