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CVE-2026-100394— Nezha Monitoring: Whole-instance DoS in Nezha dashboard: a member can crash the process for every tenant

一分钟漏洞结论

影响对象
nezhahq nezha
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From 2.2.7 until 2.2.11, ServiceSentinel.worker in service/singleton/servicesentinel.go checked an owned service under servicesLock and later dereferenced pointer-v

CVSS 6.5 · Medium

影响版本矩阵 1

厂商产品 版本范围状态
nezhahq nezha >= 2.2.7, < 2.2.11 affected
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一、 漏洞 CVE-2026-100394 基础信息

漏洞信息

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Vulnerability Title
Nezha Monitoring: Whole-instance DoS in Nezha dashboard: a member can crash the process for every tenant
来源: CVE Program / CVE List V5
Vulnerability Description
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From 2.2.7 until 2.2.11, ServiceSentinel.worker in service/singleton/servicesentinel.go checked an owned service under servicesLock and later dereferenced pointer-valued serviceStatusToday and serviceCurrentStatusData entries under serviceResponseDataStoreLock without revalidating that ServiceSentinel.Delete had not removed them. A RoleMember could concurrently report TCP or ICMP results through the member's own agent and delete the same owned service, causing a nil pointer dereference. Because the gRPC server had no recovery interceptor, the worker panic terminated the whole dashboard process and disrupted every tenant's web interface, REST API, and agent connections. The issue affects availability only and does not disclose or modify data. This issue is fixed in versions 2.2.11 and 2.3.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
nezhahq nezha >= 2.2.7, < 2.2.11 -

二、漏洞 CVE-2026-100394 的公开POC

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三、漏洞 CVE-2026-100394 的情报信息

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CVE-2026-100394 其他参考 (4)

IV. Related Vulnerabilities

Same product: nezha
Same vendor: nezhahq
Same weakness: CWE-362

V. Comments for CVE-2026-100394

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