CVE-2026-48119
Received Received - Intake
Authenticated Agent Service Result Forgery in Nezha Monitoring

Publication date: 2026-06-12

Last updated on: 2026-06-12

Assigner: GitHub, Inc.

Description
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 0.20.0 to before version 2.0.12, authenticated agents can forge service-monitor results for other users' services. This issue has been patched in version 2.0.12.
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Meta Information
Published
2026-06-12
Last Modified
2026-06-12
Generated
2026-06-13
AI Q&A
2026-06-13
EPSS Evaluated
N/A
NVD
CVE-2026-48119
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
nezha_monitoring nezha_monitoring From 0.20.0 (inc) to 2.0.12 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
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Executive Summary

The vulnerability exists in Nezha Monitoring, a self-hostable tool for monitoring servers and websites. In versions from 0.20.0 up to but not including 2.0.12, authenticated agents have the ability to forge service-monitor results for services belonging to other users. This means that an attacker with agent-level access can manipulate monitoring data for services they do not own.

Impact Analysis

This vulnerability can impact you by allowing an authenticated agent to falsify monitoring results for other users' services. This could lead to incorrect monitoring data, potentially hiding service outages or issues, misleading administrators, and affecting the reliability of the monitoring system. The integrity of monitoring information is compromised, which may result in delayed responses to real problems or false alarms.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade Nezha Monitoring to version 2.0.12 or later, where the issue has been patched.

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