CVE-2026-111670

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.

CVSS 4.0

5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-10-16

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

References

• 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://hackmd.io/@hieuPenguinnn/clickvisual-report-module-missing-authz-cross-instance-idor
• https://www.vulncheck.com/advisories/clickvisual-through-1.1.2-missing-authorization-in-apiv2-report-module
• https://hackmd.io/@hieuPenguinnn/clickvisual-report-module-missing-authz-cross-instance-idor

Check your stackJSON