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CVE-2026-76223— ArcadeDB before 26.8.1 Permission Bypass via DEFINE FUNCTION

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。 ArcadeData ArcadeDB 26.7.3及之前版本存在授权问题漏洞，该漏洞源于在DEFINE FUNCTION语句针对已存在的函数库时未执行UPDATE_SCHEMA权限检查，可能导致具有数据库访问权限的用户添加或覆盖现有库中的SQL或Cypher函数并持久化更改，从而篡改管理员定义的函数逻辑。

CVSS 7.1 · High EPSS 0.25% · P17

Possible ATT&CK Techniques 1 AI

T1562.001

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-2026-76223

Vulnerability Information
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Vulnerability Title
ArcadeDB before 26.8.1 Permission Bypass via DEFINE FUNCTION
Source: CVE Program / CVE List V5
Vulnerability Description
ArcadeDB (com.arcadedb) versions 26.7.3 and earlier fail to enforce the UPDATE_SCHEMA permission check when a DEFINE FUNCTION statement targets an already-existing function library. A user with only database access can add or overwrite SQL or Cypher functions in an existing library and persist the change, enabling tampering with admin-defined function logic. The issue is fixed in 26.8.1. (JavaScript functions still trigger the UPDATE_SECURITY check and are not affected.)
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
ArcadeData ArcadeDB 授权问题漏洞
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。 ArcadeData ArcadeDB 26.7.3及之前版本存在授权问题漏洞，该漏洞源于在DEFINE FUNCTION语句针对已存在的函数库时未执行UPDATE_SCHEMA权限检查，可能导致具有数据库访问权限的用户添加或覆盖现有库中的SQL或Cypher函数并持久化更改，从而篡改管理员定义的函数逻辑。
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-2026-76223

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9595 chars
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In-depth vulnerability mechanism
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POC zip download
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III. Intelligence Information for CVE-2026-76223

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Vendor Advisories for CVE-2026-76223 (2)

Same Patch Batch · ArcadeData · 2026-08-19 · 3 CVEs total

CVE-2026-76224 8.8 HIGH ArcadeDB before 26.8.1 Remote Code Execution via Groovy Fallback
CVE-2026-76225 7.7 HIGH ArcadeDB before 26.8.1 Server-Side Request Forgery via LOAD CSV

IV. Related Vulnerabilities

Same product: arcadedb
Same vendor: ArcadeData
Same weakness: CWE-862

V. Comments for CVE-2026-76223

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