CVE-2026-53520

Nezha Monitoring: Authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing

CVSS 6.5 MEDIUMEPSS 0.3%CWE-284

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

12 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

nezhahq · nezha

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References

https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w