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CVE-2026-68578— ArcadeDB before 26.7.3 Authentication Bypass via MCP Transport

Quick assessment

Affected
ArcadeData arcadedb
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ArcadeData arcadedb是ArcadeData的消息队列中间件。 Arcade Data ArcadeDB 26.7.3之前版本存在授权问题漏洞，该漏洞源于MCP HTTP传输中未能绑定已认证主体，导致所有引擎权限检查静默通过，非root MCP允许的用户可执行任意数据库写入、DDL、架构修改及通过查询工具执行任意JavaScript代码。

CVSS 7.5 · High EPSS 0.36% · P29

Affected Version Matrix 2

VendorProduct Version RangeStatus
ArcadeData arcadedb < 26.7.3 affected
26.7.3 unaffected
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I. Basic Information for CVE-2026-68578

Vulnerability Information
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Vulnerability Title
ArcadeDB before 26.7.3 Authentication Bypass via MCP Transport
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Arcade Data ArcadeDB 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ArcadeData arcadedb是ArcadeData的消息队列中间件。 Arcade Data ArcadeDB 26.7.3之前版本存在授权问题漏洞，该漏洞源于MCP HTTP传输中未能绑定已认证主体，导致所有引擎权限检查静默通过，非root MCP允许的用户可执行任意数据库写入、DDL、架构修改及通过查询工具执行任意JavaScript代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ArcadeData arcadedb 0 ~ 26.7.3 -

II. Public POCs for CVE-2026-68578

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
Upgrade to Pro+
claude_code · 9146 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-68578

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Vendor Advisories for CVE-2026-68578 (2)

Same Patch Batch · ArcadeData · 2026-08-02 · 3 CVEs total

CVE-2026-67356 8.8 HIGH ArcadeDB before 26.7.3 Privilege Escalation via JavaScript Trigger
CVE-2026-67357 7.5 HIGH ArcadeDB before 26.7.3 Information Disclosure via get_server_settings

IV. Related Vulnerabilities

Same product: arcadedb
Same vendor: ArcadeData
Same weakness: CWE-306

V. Comments for CVE-2026-68578

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