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CVE-2026-75851— ArcadeDB before 26.8.1 Authentication Bypass via Async Command

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.

Arcade Data ArcadeDB是Arcade Data组织的一款高性能原生多模型数据库。 Arcade Data ArcadeDB 26.7.3及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于未能将已认证主体传播到异步命令工作线程，导致脚本授权门禁失效，具有单个数据库只读权限的用户可通过/api/v1/command端点提交异步JavaScript命令，以不受限制的主机访问权限运行代码，创建服务器级管理员，从而导致权限提升。

CVSS 9.9 · Critical EPSS 0.32% · P24

Affected Version Matrix 2

VendorProduct Version RangeStatus
ArcadeData arcadedb < 26.8.1 affected
26.8.1 unaffected
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I. Basic Information for CVE-2026-75851

Vulnerability Information
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Vulnerability Title
ArcadeDB before 26.8.1 Authentication Bypass via Async Command
Source: CVE Program / CVE List V5
Vulnerability Description
ArcadeDB server (com.arcadedb:arcadedb-server) in versions 26.7.3 and earlier fails to propagate the authenticated principal to asynchronous command worker threads. When an HTTP command is submitted with awaitResponse:false, it executes on an async worker whose DatabaseContext has no bound user, causing the scripting authorization gate to become a no-op. A user with only read access to a single database can submit an asynchronous JavaScript (language=js) command via the /api/v1/command endpoint to run code with unrestricted host access (e.g., database.getSecurity().createUser) and create a server-wide administrator, escalating to full administrative control. Fixed in 26.8.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Arcade Data ArcadeDB 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arcade Data ArcadeDB是Arcade Data组织的一款高性能原生多模型数据库。 Arcade Data ArcadeDB 26.7.3及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于未能将已认证主体传播到异步命令工作线程，导致脚本授权门禁失效，具有单个数据库只读权限的用户可通过/api/v1/command端点提交异步JavaScript命令，以不受限制的主机访问权限运行代码，创建服务器级管理员，从而导致权限提升。
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 ~ 26.8.1 -

II. Public POCs for CVE-2026-75851

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8310 chars
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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-2026-75851

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Vendor Advisories for CVE-2026-75851 (2)

Same Patch Batch · ArcadeData · 2026-08-18 · 14 CVEs total

CVE-2026-75843 9.9 CRITICAL ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction
CVE-2026-75854 9.8 CRITICAL ArcadeDB Redis Wire-Protocol Plugin Missing Authentication
CVE-2026-75852 9.8 CRITICAL ArcadeDB MongoDB wire protocol authentication bypass cross-database
CVE-2026-75853 8.8 HIGH ArcadeDB Gremlin Wire Protocol Authorization Bypass Cross-Database
CVE-2026-75855 8.7 HIGH ArcadeDB before 26.8.1 Path Traversal via create/drop database
CVE-2026-75842 7.7 HIGH ArcadeDB before 26.8.1 Arbitrary File Read via LOAD CSV
CVE-2026-75840 7.5 HIGH ArcadeDB before 26.8.1 Arbitrary File Read via Unescaped Regex
CVE-2026-75846 7.1 HIGH ArcadeDB before 26.8.1 Unauthorized Function Deletion via DELETE FUNCTION
CVE-2026-75844 7.1 HIGH ArcadeDB before 26.8.1 SSRF via IMPORT DATABASE validator bypass
CVE-2026-75845 6.3 MEDIUM ArcadeDB 26.4.2 before 26.8.1 Authorization Bypass via set_server_setting
CVE-2026-75841 4.3 MEDIUM ArcadeDB before 26.8.1 Denial of Service via range()
CVE-2026-75839 4.3 MEDIUM ArcadeDB before 26.8.1 Information Disclosure via Cluster Endpoints
CVE-2026-75850 4.2 MEDIUM ArcadeDB before 26.8.1 Per-Type ACL Bypass via Batch Handlers

IV. Related Vulnerabilities

Same product: arcadedb
Same vendor: ArcadeData
Same weakness: CWE-269

V. Comments for CVE-2026-75851

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