CVE-2026-68578

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductArcadedata Arcadedb

PublishedAug 2, 2026

First seenAug 2, 2026

Weakness typeCWE-306Missing authentication for critical function

How to fix

Update

ArcadeData arcadedb26.7.3 or later

Vendor advisories

github.com/ArcadeData/arcadedb/security/advisories/GHSA-6x73-v3rc-f57c

Affected products

Product	Affected versions	Fixed in
ArcadeData arcadedb	v < 26.7.3	26.7.3

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