CVEvulnerability

CVE-2026-46716

9.9 CRITICAL Published 2026-06-12 Modified 2026-10-25 Official page ↗
Status
Deferred
Published
2026-06-12
Last modified
2026-10-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.9 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-269, CWE-78, CWE-862

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.

Related

Weakness · CWE (3)

  • CWE-269 Improper Privilege Management weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness
  • CWE-862 Missing Authorization weakness

References