CVE-2026-47120
Received Received - Intake
Stored XSS in Nezha Monitoring via AlertRule FailTriggerTasks

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 1.4.0 to before version 2.0.8, a RoleMember can fire other users' cron tasks via AlertRule.FailTriggerTasks (no ownership check). This issue has been patched in version 2.0.8.
CVSS Scores
EPSS Scores
Probability:
Percentile:
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-2026-47120
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
nezha_monitoring nezha_monitoring From 1.4.0 (inc) to 2.0.8 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
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.
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability exists in Nezha Monitoring versions from 1.4.0 up to but not including 2.0.8. It allows a user with the RoleMember role to trigger cron tasks that belong to other users by exploiting the AlertRule.FailTriggerTasks feature. The issue arises because there is no ownership check when firing these tasks, meaning RoleMembers can execute tasks they do not own.

Impact Analysis

The vulnerability can impact you by allowing users with limited privileges (RoleMember) to execute cron tasks of other users without authorization. This can lead to unauthorized actions being performed, potentially disrupting operations or causing unintended side effects. According to the CVSS score of 7.1, the impact is significant with high integrity impact and low availability impact.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade Nezha Monitoring to version 2.0.8 or later, where the issue has been patched.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-47120. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart