CVE-2026-105113: Improper Locking in nezhahq nezha
Nezha Dashboard from 1.8.0 before 2.3.13 contains an improper locking vulnerability where a non-deferred mutex unlock leaks on a nil-map panic path. Any authenticated non-admin member can issue four notification API calls to permanently deadlock the alerting subsystem, then exhaust memory with blocking requests.
AI Analysis
Technical Summary
CVE-2026-105113 describes an improper locking vulnerability in Nezha Dashboard versions >=1.8.0 and <2.3.13. The issue arises from a non-deferred mutex unlock that leaks when a nil-map panic occurs. Exploitation requires an authenticated non-admin user to issue four notification API calls, which triggers a permanent deadlock in the alerting subsystem. This deadlock then leads to memory exhaustion as blocking requests accumulate.
Potential Impact
The vulnerability allows any authenticated non-admin user to cause a permanent deadlock in the alerting subsystem of Nezha Dashboard, leading to denial of service through memory exhaustion. This can disrupt alerting functionality and potentially degrade system stability or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict authenticated user permissions to trusted users only and monitor for unusual alerting subsystem behavior. Avoid issuing multiple notification API calls from non-admin users.
CVE-2026-105113: Improper Locking in nezhahq nezha
Description
Nezha Dashboard from 1.8.0 before 2.3.13 contains an improper locking vulnerability where a non-deferred mutex unlock leaks on a nil-map panic path. Any authenticated non-admin member can issue four notification API calls to permanently deadlock the alerting subsystem, then exhaust memory with blocking requests.
CVSS v4.0
Score 7.1high
Affected software
nezhahq
nezha
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-105113 describes an improper locking vulnerability in Nezha Dashboard versions >=1.8.0 and <2.3.13. The issue arises from a non-deferred mutex unlock that leaks when a nil-map panic occurs. Exploitation requires an authenticated non-admin user to issue four notification API calls, which triggers a permanent deadlock in the alerting subsystem. This deadlock then leads to memory exhaustion as blocking requests accumulate.
Potential Impact
The vulnerability allows any authenticated non-admin user to cause a permanent deadlock in the alerting subsystem of Nezha Dashboard, leading to denial of service through memory exhaustion. This can disrupt alerting functionality and potentially degrade system stability or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict authenticated user permissions to trusted users only and monitor for unusual alerting subsystem behavior. Avoid issuing multiple notification API calls from non-admin users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-03T12:04:36.963Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac10acea43b0b3b89c6cf63
Added to database: 10/03/2026, 14:01:50 UTC
Last enriched: 10/03/2026, 14:16:10 UTC
Last updated: 10/04/2026, 04:33:33 UTC
Views: 15
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