CVE-2026-75855: Arcadedata Arcadedb

High severity, CVSS 8.7. EPSS: 0.5% chance of exploitation in the next 30 days.

ArcadeDB versions before 26.8.1 fail to sanitize database names in the POST /api/v1/server endpoint's create database and drop database commands, allowing authenticated root users to write and delete arbitrary files outside the configured database directory. Attackers can supply database names containing ../ sequences to create databases at arbitrary filesystem paths or recursively delete directories the server process can access.

Affected products

• Arcadedata Arcadedb: before 26.8.1 (fixed in 26.8.1)

Published 2026-08-18. Last modified 2026-09-08.