What is CVE-2026-53520?

CVE-2026-53520 is a medium-severity vulnerability, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-06-12.

How severe is CVE-2026-53520?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CVE-2026-53520

CVE-2026-53520

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. Th…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

security-advisories@github.com

Frequently asked questions

What is CVE-2026-53520?: CVE-2026-53520 is a medium-severity vulnerability, classified under Improper Access Control. CVSS score: 6.5/10. Published 2026-06-12.
How severe is CVE-2026-53520?: Medium severity. CVSS v3 base score is 6.5 out of 10.