CVE-2026-53520: CWE-284: Improper Access Control in nezhahq nezha
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.
AI Analysis
Technical Summary
CVE-2026-53520 is an improper access control vulnerability (CWE-284) in Nezha Monitoring, a self-hostable servers and websites monitoring tool. Versions 2.0.14 through 2.0.x before 2.1.0 allow authenticated users to claim the dashboard Host via NAT, which enables them to preempt all dashboard routing. This could disrupt availability of the dashboard. The vulnerability is patched in version 2.1.0.
Potential Impact
The vulnerability does not impact confidentiality or integrity but causes a denial of service condition by allowing authenticated users to take over dashboard routing, potentially disrupting monitoring operations.
Mitigation Recommendations
Upgrade Nezha Monitoring to version 2.1.0 or later, where this improper access control vulnerability has been fixed. No other mitigation is indicated.
CVE-2026-53520: CWE-284: Improper Access Control in nezhahq nezha
Description
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
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-53520 is an improper access control vulnerability (CWE-284) in Nezha Monitoring, a self-hostable servers and websites monitoring tool. Versions 2.0.14 through 2.0.x before 2.1.0 allow authenticated users to claim the dashboard Host via NAT, which enables them to preempt all dashboard routing. This could disrupt availability of the dashboard. The vulnerability is patched in version 2.1.0.
Potential Impact
The vulnerability does not impact confidentiality or integrity but causes a denial of service condition by allowing authenticated users to take over dashboard routing, potentially disrupting monitoring operations.
Mitigation Recommendations
Upgrade Nezha Monitoring to version 2.1.0 or later, where this improper access control vulnerability has been fixed. No other mitigation is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-09T17:30:33.456Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2c7c93e617e2d834c6c817
Added to database: 06/12/2026, 21:39:31 UTC
Last enriched: 06/19/2026, 22:23:20 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 85
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