---
id: CVE-2026-93595
title: >-
  ArcadeDB before 26.9.1 contains an access control bypass vulnerability in the
  query_database tool exposed through the AI chat endpoints
summary: >-
  ArcadeDB before 26.9.1 contains an access control bypass vulnerability in the
  query_database tool exposed through the AI chat endpoints. The tool executes
  queries without binding the authenticated principal to DatabaseContext,
  causing pe…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-862
vendor: ArcadeData
product: arcadedb
affected:
  - arcadedb < 26.9.1
published: '2026-09-18'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T21:17:18.797'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93595'
references:
  - url: >-
      https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-chrr-vr3p-crcc
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/arcadedb-before-26.9.1-acl-bypass-via-query-database-tool
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-21T16:22:48.162910Z'
epss: 0.00286
epssPercentile: 0.21336
ingestedAt: '2026-09-18T13:41:41.664Z'
---

## Overview

ArcadeDB before 26.9.1 contains an access control bypass vulnerability in the query_database tool exposed through the AI chat endpoints. The tool executes queries without binding the authenticated principal to DatabaseContext, causing per-type and per-bucket ACL checks to silently no-op and allowing authenticated users to read data they are explicitly denied at the per-type level. Attackers can prompt the AI assistant to execute queries against restricted types or buckets to retrieve sensitive data that would be rejected through normal query endpoints.

## Remediation

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