Home/Vulnerability/CVE-2026-47124

CVE-2026-47124

Nezha WebSocket server stream discloses cross-tenant server telemetry to authenticated members

Published: Jun 12, 2026Updated: Jun 12, 2026 Sources: CVE List NVD

6.5CVSS

MEDIUM

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.

EPSS Score

N/A

CISA KEV

Not in KEV

Exploits

No Known Exploits

Remediation

No Fix Available

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:NIntegrity

None

A:NAvailability

None

Weaknesses

CWE-200

Affected Products

nezha

nezhahq

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique

Collection

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References

https://github.com/nezhahq/nezha/security/advisories/GHSA-hvv7-hfrh-7gxj

github.com

Timeline

Published

Jun 12, 2026

Last Updated

Jun 12, 2026

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