CVE-2021-35936

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{"affected": [{"affectedData": [{"product": "Apache Airflow", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "2.1.2", "status": "affected", "version": "Apache Airflow", "versionType": "custom"}]}], "source": "security@apache.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*", "matchCriteriaId": "410C1DAD-EE40-4F94-8DF6-25B94961F5FD", "versionEndExcluding": "2.1.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "If remote logging is not used, the worker (in the case of CeleryExecutor) or the scheduler (in the case of LocalExecutor) runs a Flask logging server and is listening on a specific port and also binds on 0.0.0.0 by default. This logging server had no authentication and allows reading log files of DAG jobs. This issue affects Apache Airflow < 2.1.2."}, {"lang": "es", "value": "Si no es usado el registro remoto, el trabajador (en el caso de CeleryExecutor) o el planificador (en el caso de LocalExecutor) ejecuta un servidor de registro Flask y est\u00e1 escuchando en un puerto espec\u00edfico y tambi\u00e9n se vincula en 0.0.0.0 por defecto. Este servidor de registro no presenta autenticaci\u00f3n y permite leer los archivos de registro de los trabajos DAG. Este problema afecta a Apache Airflow versiones anteriores a 2.1.2."}], "id": "CVE-2021-35936", "lastModified": "2026-06-17T03:57:57.623", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-16T08:15:11.530", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread.html/r53d6bd7b0a66f92ddaf1313282f10fec802e71246606dd30c16536df%40%3Cusers.airflow.apache.org%3E"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread.html/r53d6bd7b0a66f92ddaf1313282f10fec802e71246606dd30c16536df%40%3Cusers.airflow.apache.org%3E"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "security@apache.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-306"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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