Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.4.0 to before version 2.0.9, any authenticated non-admin member can connect to the server-status WebSocket and receive telemetry for all servers, including servers owned by other users. The normal server list API filters objects by HasPermission, but the WebSocket stream treats the presence of any authenticated user as authorization for the full unfiltered server list. This issue has been patched in version 2.0.9.
History

Fri, 12 Jun 2026 21:45:00 +0000

Type Values Removed Values Added
Description Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.4.0 to before version 2.0.9, any authenticated non-admin member can connect to the server-status WebSocket and receive telemetry for all servers, including servers owned by other users. The normal server list API filters objects by HasPermission, but the WebSocket stream treats the presence of any authenticated user as authorization for the full unfiltered server list. This issue has been patched in version 2.0.9.
Title Nezha WebSocket server stream discloses cross-tenant server telemetry to authenticated members
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-12T21:03:08.831Z

Reserved: 2026-05-18T19:50:18.694Z

Link: CVE-2026-47124

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-12T22:16:51.250

Modified: 2026-06-12T22:16:51.250

Link: CVE-2026-47124

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-12T22:30:08Z