CVE-2026-53519

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{"affected": [{"affectedData": [{"product": "nezha", "vendor": "nezhahq", "versions": [{"status": "affected", "version": "< 2.0.13"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Prior to version 2.0.13, fallbackToFrontend in the dashboard's NoRoute handler treats any URL whose raw string starts with /dashboard as an admin-frontend asset request. The check uses strings.HasPrefix, not a path-segment match, so the input /dashboard../data/config.yaml is accepted; strings.TrimPrefix leaves ../data/config.yaml; and path.Join(\"admin-dist\", \"../data/config.yaml\") normalizes to data/config.yaml \u2014 which os.Stat finds and http.ServeFile returns. No authentication required. This issue has been patched in version 2.0.13."}, {"lang": "es", "value": "Nezha Monitoring es una herramienta autoalojable y ligera para el monitoreo de servidores y sitios web, y para O&M. Antes de la versi\u00f3n 2.0.13, fallbackToFrontend en el gestor NoRoute del panel de control trata cualquier URL cuya cadena de texto sin procesar comience con /dashboard como una solicitud de recurso del frontend de administraci\u00f3n. La verificaci\u00f3n utiliza strings.HasPrefix, no una coincidencia de segmento de ruta, por lo que la entrada /dashboard.. / data/config.yaml es aceptada; strings.TrimPrefix deja .. / data/config.yaml; y path.Join(\u201cadmin-dist\u201d, \u201c.. / data/config.yaml\u201d) se normaliza a data/config.yaml - que os.Stat encuentra y http.ServeFile devuelve. No se requiere autenticaci\u00f3n. Este problema ha sido parcheado en la versi\u00f3n 2.0.13."}], "id": "CVE-2026-53519", "lastModified": "2026-10-25T23:10:00.167", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53519", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-15T18:26:37.174737Z", "version": "2.0.3"}}]}, "published": "2026-06-12T22:16:51.953", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nezhahq/nezha/security/advisories/GHSA-5c25-7vpj-9mqh"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.0.13)"}}], "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": "2026-06-12T22:30:08.132817+00:00", "updated": "2026-08-14T15:15:03.360071+00:00", "vendors": ["nezhahq", "nezhahq$PRODUCT$nezha"]}