ArcadeData ArcadeDB/ArcadeDB Server up to 26.7.0 Polyglot Query Engine /api/v1/command PolyglotQueryEngine.command Language improper authorization

Summaryinfo

A vulnerability labeled as problematic has been found in ArcadeData ArcadeDB and ArcadeDB Server up to 26.7.0. This affects the function PolyglotQueryEngine.command of the file /api/v1/command of the component Polyglot Query Engine. The manipulation of the argument Language results in improper authorization. This vulnerability is cataloged as CVE-2026-65831. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ArcadeData ArcadeDB and ArcadeDB Server up to 26.7.0. Affected is the function PolyglotQueryEngine.command of the file /api/v1/command of the component Polyglot Query Engine. The manipulation of the argument language with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-65831 since 07/23/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 26.7.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-78662). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• ArcadeData

Name

• ArcadeDB
• ArcadeDB Server

Version

• 26.0
• 26.1
• 26.2
• 26.3
• 26.4
• 26.5
• 26.6
• 26.7.0

Website

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

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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