---
id: CVE-2026-76223
title: >-
  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
summary: >-
  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 S…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'
cwe:
  - CWE-862
published: '2026-08-19'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:32:39.347'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76223'
references:
  - url: >-
      https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-rv64-62hr-wv2p
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/arcadedb-before-permission-bypass-via-define-function
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00352
epssPercentile: 0.26148
ingestedAt: '2026-09-08T21:11:12.284Z'
---

## Overview

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.)

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.