CVE-2026-46716

EUVD-2026-36591 · Published Jun 12, 2026

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.4.0 to before version 2.0.8, a RoleMember user can create a scheduled cron task with Cover=CronCoverAll, Servers=[] and an arbitrary Command. At every tick of the scheduler, the dashboard pushes that command to every server in the global ServerShared map — including servers that belong to other tenants (admin's servers, other members' servers). Each agent runs the command and returns the output, which is then sent to the attacker's own NotificationGroup → attacker-controlled webhook. This issue has been patched in version 2.0.8.

Technologies

Nezhahq Nezha

Weaknesses

CWE-862CWE-78CWE-269

CVSS scores

v3.19.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Initial Access Persistence Privilege Escalation Stealth Defense Impairment Credential Access

T1190Exploit Public-Facing Application T1211Exploitation for Stealth T1542.002Component Firmware T1548Abuse Elevation Control Mechanism T1556Modify Authentication Process

References

Potentially impacted assets

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