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Vulnerability record · CVE-2026-46716 · published 12 June 2026

CVE-2026-46716: OS command injection vulnerability

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.

9.9 CVSS 3.1 Critical EPSS 0.49% · top 60.3% CWE-78 · OS command injectionCWE-269 · Improper privilege management Deferred
9.9CVSS 3.1 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.4.0 to before version 2.0.8, 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.

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

References

LinkTags
https://github.com/nezhahq/nezha/security/advisories/GHSA-99gv-2m7h-3hh9
https://github.com/nezhahq/nezha/security/advisories/GHSA-99gv-2m7h-3hh9

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Source: NIST National Vulnerability Database (record CVE-2026-46716), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.