{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-23T22:23:08.420","vulnerabilities":[{"cve":{"id":"CVE-2018-17194","sourceIdentifier":"security@apache.org","published":"2018-12-19T14:29:00.440","lastModified":"2026-06-17T01:45:31.010","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"When a client request to a cluster node was replicated to other nodes in the cluster for verification, the Content-Length was forwarded. On a DELETE request, the body was ignored, but if the initial request had a Content-Length value other than 0, the receiving nodes would wait for the body and eventually timeout. Mitigation: The fix to check DELETE requests and overwrite non-zero Content-Length header values was applied on the Apache NiFi 1.8.0 release. Users running a prior 1.x release should upgrade to the appropriate release."},{"lang":"es","value":"Cuando una petición de cliente a un nodo del clúster se replicó a otros nodos en el clúster para verificarlos, se redireccionó el Content-Length. En una petición DELETE, el cuerpo fue ignorado, pero si la petición inicial contenía un valor Content-Length diferente de 0, los nodos recibidores esperarían al cuerpo y, finalmente, agotarían su tiempo de conexión. Mitigación: La solución para comprobar las peticiones DELETE y sobrescribir valores de la cabecera Content-Length que no son cero se aplicó en la versión 1.8.0 de Apache NiFi. Los usuarios que ejecuten una distribución 1.x anterior deben actualizarla a la distribución adecuada."}],"affected":[{"source":"security@apache.org","affectedData":[{"vendor":"Apache Software Foundation","product":"Apache NiFi","versions":[{"version":"Apache NiFi 1.0.0 - 1.7.1","status":"affected"}]}]}],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-20"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionEndIncluding":"1.7.1","matchCriteriaId":"2F6B3A37-6559-40FE-92B9-4FCE9906CA5D"}]}]}],"references":[{"url":"https://nifi.apache.org/security.html#CVE-2018-17194","source":"security@apache.org","tags":["Vendor Advisory"]},{"url":"https://nifi.apache.org/security.html#CVE-2018-17194","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}