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. This issue has been patched in version 2.1.0.

CVSS v3.1

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

CVSS v3.1

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

EPSS

0.28% chance of exploitation in the next 30 days, 20th percentile

Published

2026-06-12

Updated

2026-06-15

Proof-of-concept exploits (1)

• advisories/GHSA-x6fg-52vr-hj4w

References

• CVE Record
• NVD entry

Related

• CVE-2026-5352
• CVE-2026-5353
• CVE-2026-53519
• CVE-2026-53530
• CVE-2026-5351
• CVE-2026-53531