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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ArcadeData | arcadedb | < 26.7.3 | 26.7.3 |
References
- GitHub Security Advisory (GHSA-6x73-v3rc-f57c) vendor-advisory
- VulnCheck Advisory: ArcadeDB before 26.7.3 Authentication Bypass via MCP Transport third-party-advisory