CVE-2026-68578

Description

ArcadeDB versions before 26.7.3 fail to bind the authenticated principal in the MCP HTTP transport, causing all engine permission checks to silently pass as no-ops. Non-root MCP-allowed users can perform arbitrary database writes, DDL, schema mutations, and execute arbitrary JavaScript code via the query tool.

CVSS Vector

References

• https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-6x73-v3rc-f57c
• https://www.vulncheck.com/advisories/arcadedb-authentication-bypass-via-mcp-transport