{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53520", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-09T17:30:33.456Z", "datePublished": "2026-06-12T21:03:58.782Z", "dateUpdated": "2026-06-12T21:03:58.782Z"}, "containers": {"cna": {"title": "Nezha Monitoring: Authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing", "problemTypes": [{"descriptions": [{"cweId": "CWE-284", "lang": "en", "description": "CWE-284: Improper Access Control", "type": "CWE"}]}], "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"}}], "references": [{"name": "https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w"}], "affected": [{"vendor": "nezhahq", "product": "nezha", "versions": [{"version": ">= 2.0.14, < 2.1.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-12T21:03:58.782Z"}, "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."}], "source": {"advisory": "GHSA-x6fg-52vr-hj4w", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-53520", "lastModified": "2026-06-12T22:16:52.097", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-06-12T22:16:52.097", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nezhahq/nezha/security/advisories/GHSA-x6fg-52vr-hj4w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.14,2.1.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "nezha", "source": "cna", "vendor": "nezhahq"}, "product": "nezha", "vendor": "nezhahq"}], "created": "2026-06-12T23:00:08.888107+00:00", "updated": "2026-06-13T12:30:04.862978+00:00", "vendors": ["nezhahq", "nezhahq$PRODUCT$nezha"]}