---
id: CVE-2026-111670
title: ClickVisual through 1.1.2 Missing Authorization in apiv2 Report Module
summary: >-
  ClickVisual through 1.1.2 contains a missing authorization vulnerability in
  the /api/v2/reports handlers that allows authenticated low-privileged users to
  access ClickHouse instances they were not granted. Attackers can iterate the
  insta…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-862
vendor: clickvisual
product: clickvisual
affected:
  - clickvisual <= 1.1.2
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T17:39:31.782Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111670'
references:
  - url: >-
      https://hackmd.io/@hieuPenguinnn/clickvisual-report-module-missing-authz-cross-instance-idor
  - url: >-
      https://github.com/clickvisual/clickvisual/blob/v1.1.2/api/internal/api/apiv2/report/report.go#L282-L343
  - url: >-
      https://github.com/clickvisual/clickvisual/blob/v1.1.2/api/internal/service/report/metadata.go#L136-L152
  - url: >-
      https://www.vulncheck.com/advisories/clickvisual-through-1.1.2-missing-authorization-in-apiv2-report-module
    label: >-
      VulnCheck Advisory: ClickVisual through 1.1.2 Missing Authorization in
      apiv2 Report Module
tags:
  - cve.org
ingestedAt: '2026-10-16T18:43:08.668Z'
---

## Overview

ClickVisual through 1.1.2 contains a missing authorization vulnerability in the /api/v2/reports handlers that allows authenticated low-privileged users to access ClickHouse instances they were not granted. Attackers can iterate the instance-id parameter in ReportSourceDatabases, ReportSourceTables, ReportTableColumns and WhereCheckRun to enumerate schemas and infer row counts of restricted tables.

## Affected

- `clickvisual <= 1.1.2`

## Remediation

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