{"id":"EUVD-2026-101303","enisaUuid":"c106f151-d1af-38ea-871b-d24b955a03c4","description":"Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O\u0026M 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\u0027s 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\u0027s 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.","datePublished":"Oct 14, 2026, 3:38:47 PM","dateUpdated":"Oct 29, 2026, 2:39:43 PM","baseScore":6.5,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","references":"https://github.com/nezhahq/nezha/security/advisories/GHSA-qjpp-gffx-2wm9\nhttps://github.com/nezhahq/nezha/commit/c893aa57867d8a3d608e2f2f16d1594c9766cdf3\nhttps://github.com/nezhahq/nezha/releases/tag/v2.2.11\nhttps://github.com/nezhahq/nezha/releases/tag/v2.3.0\n","aliases":"CVE-2026-100394\nGHSA-qjpp-gffx-2wm9\n","assigner":"GitHub_M","epss":0.5,"enisaIdProduct":[{"id":"3b5bea79-c504-3a73-8917-94822c7d229e","product":{"name":"nezha","vendor":{"name":"nezhahq"}},"product_version":"2.2.7, \u003c 2.2.11"}],"enisaIdVendor":[{"id":"b153a6e1-54ea-3eee-bd17-5f1d51572781","vendor":{"name":"nezhahq"}}],"enisaIdVulnerability":[{"id":"0759a2d3-f140-3d76-bd2f-c3ff8365c9af","vulnerability":{"id":"CVE-2026-100394","description":"Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O\u0026M 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\u0027s 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\u0027s 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.","datePublished":"Oct 14, 2026, 3:38:47 PM","dateUpdated":"Oct 29, 2026, 2:39:43 PM","status":"PUBLISHED","baseScore":6.5,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","references":"https://github.com/nezhahq/nezha/security/advisories/GHSA-qjpp-gffx-2wm9\nhttps://github.com/nezhahq/nezha/commit/c893aa57867d8a3d608e2f2f16d1594c9766cdf3\nhttps://github.com/nezhahq/nezha/releases/tag/v2.2.11\nhttps://github.com/nezhahq/nezha/releases/tag/v2.3.0\n","enisa_id":"EUVD-2026-101303\n","assigner":"GitHub_M","epss":0.5,"dataProcessed":"Nov 1, 2026, 1:46:19 AM","vulnerabilityProduct":[{"id":"08b750d3-6556-3fe0-ab95-7b8ff118f1aa","product":{"name":"nezha","vendor":{"name":"nezhahq"}},"product_version":"2.2.7, \u003c 2.2.11"}],"vulnerabilityVendor":[{"id":"2bafdffc-b34c-3122-bfdb-a46ea87f46c5","vendor":{"name":"nezhahq"}}]}},{"id":"c35befba-fe22-316c-bccb-3af3e5b52ada","vulnerability":{"id":"GHSA-qjpp-gffx-2wm9","description":"Nezha Monitoring: Whole-instance DoS in Nezha dashboard: a member can crash the process for every tenant","datePublished":"Oct 15, 2026, 8:15:06 PM","dateUpdated":"Oct 15, 2026, 8:15:07 PM","baseScore":0.0,"references":"https://github.com/nezhahq/nezha/security/advisories/GHSA-qjpp-gffx-2wm9\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-100394\nhttps://github.com/nezhahq/nezha/commit/c893aa57867d8a3d608e2f2f16d1594c9766cdf3\nhttps://github.com/nezhahq/nezha\nhttps://github.com/nezhahq/nezha/releases/tag/v2.2.11\nhttps://github.com/nezhahq/nezha/releases/tag/v2.3.0\n","enisa_id":"EUVD-2026-101303\n","aliases":"GHSA-qjpp-gffx-2wm9\nCVE-2026-100394\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 2:07:48 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}