{"id":"CVE-2026-53520","state":"PUBLISHED","title":"Nezha Monitoring: Authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing","description":"Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 2.0.14 to before version 2.1.0, authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing. This issue has been patched in version 2.1.0.","publishedAt":"2026-06-12T21:03:58.782Z","updatedAt":"2026-06-15T13:01:37.769Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["nezhahq nezha"],"affected":[{"vendor":"nezhahq","product":"nezha","versions":[{"version":">= 2.0.14, < 2.1.0","status":"affected"}]}],"references":["https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53520.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53520","state":"PUBLISHED","datePublished":"2026-06-12T21:03:58.782Z","dateUpdated":"2026-06-15T13:01:37.769Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-09T17:30:33.456Z"},"containers":{"cna":{"title":"Nezha Monitoring: Authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing","descriptions":[{"lang":"en","value":"Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 2.0.14 to before version 2.1.0, authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing. This issue has been patched in version 2.1.0."}],"affected":[{"vendor":"nezhahq","product":"nezha","versions":[{"version":">= 2.0.14, < 2.1.0","status":"affected"}]}],"references":[{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w","name":"https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-12T21:03:58.782Z"},"source":{"advisory":"GHSA-x6fg-52vr-hj4w","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-15T13:01:12.587436Z","id":"CVE-2026-53520","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-15T13:01:37.769Z"}}]}}}