CVE-2026-53520: Nezhahq Nezha

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 2.0.14 to before version 2.1.0, authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing. This issue has been patched in version 2.1.0.

Affected products

• Nezhahq Nezha: from 2.0.14, before 2.1.0 (fixed in 2.1.0)

Published 2026-06-12. Last modified 2026-06-17.