CVE-2021-21430

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The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-269", "description": "CWE-269: Improper Privilege Management", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-05-10T19:25:12.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-cqxr-xf2w-943w"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/OpenAPITools/openapi-generator/pull/8791"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/OpenAPITools/openapi-generator/pull/8787"}], "source": {"advisory": "GHSA-cqxr-xf2w-943w", "discovery": "UNKNOWN"}, "title": "Creation of Temporary File in Directory with Insecure Permissions in auto-generated Java, Scala code", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-21430", "STATE": "PUBLIC", "TITLE": "Creation of Temporary File in Directory with Insecure Permissions in auto-generated Java, Scala code"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "openapi-generator", "version": {"version_data": [{"version_value": "< 5.1.0"}]}}]}, "vendor_name": "OpenAPITools"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. Using `File.createTempFile` in JDK will result in creating and using insecure temporary files that can leave application and system data vulnerable to attacks. Auto-generated code (Java, Scala) that deals with uploading or downloading binary data through API endpoints will create insecure temporary files during the process. Affected generators: `java` (jersey2, okhttp-gson (default library)), `scala-finch`. The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-269: Improper Privilege Management"}]}]}, "references": {"reference_data": [{"name": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-cqxr-xf2w-943w", "refsource": "CONFIRM", "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-cqxr-xf2w-943w"}, {"name": "https://github.com/OpenAPITools/openapi-generator/pull/8791", "refsource": "MISC", "url": "https://github.com/OpenAPITools/openapi-generator/pull/8791"}, {"name": "https://github.com/OpenAPITools/openapi-generator/pull/8787", "refsource": "MISC", "url": "https://github.com/OpenAPITools/openapi-generator/pull/8787"}]}, "source": {"advisory": "GHSA-cqxr-xf2w-943w", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:09:16.157Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-cqxr-xf2w-943w"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/OpenAPITools/openapi-generator/pull/8791"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/OpenAPITools/openapi-generator/pull/8787"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-21430", "datePublished": "2021-05-10T19:25:12.000Z", "dateReserved": "2020-12-22T00:00:00.000Z", "dateUpdated": "2024-08-03T18:09:16.157Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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Auto-generated code (Java, Scala) that deals with uploading or downloading binary data through API endpoints will create insecure temporary files during the process. Affected generators: `java` (jersey2, okhttp-gson (default library)), `scala-finch`. The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version."}, {"lang": "es", "value": "OpenAPI Generator permite la generaci\u00f3n de bibliotecas de cliente API (generaci\u00f3n de SDK), stubs de servidor, documentaci\u00f3n y configuraci\u00f3n de forma autom\u00e1tica dada una especificaci\u00f3n de OpenAPI.&#xa0;El uso de \"File.createTempFile\" en JDK dar\u00e1 como resultado la creaci\u00f3n y el uso de archivos temporales no seguros que pueden dejar la aplicaci\u00f3n y los datos del sistema vulnerables a los ataques.&#xa0;El c\u00f3digo generado autom\u00e1ticamente (Java, Scala) que se ocupa de cargar o descargar datos binarios por medio de los endpoints de la API crear\u00e1 archivos temporales no seguros durante el proceso.&#xa0;Generadores afectados: \"java\" (jersey2, okhttp-gson (biblioteca predeterminada)),\"scala-finch\".&#xa0;El problema se corrigi\u00f3 con \"Files.createTempFile\" y se lanz\u00f3 en la versi\u00f3n estable v5.1.0"}], "id": "CVE-2021-21430", "lastModified": "2026-06-17T03:35:33.643", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-10T20:15:07.840", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenAPITools/openapi-generator/pull/8787"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenAPITools/openapi-generator/pull/8791"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-cqxr-xf2w-943w"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenAPITools/openapi-generator/pull/8787"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenAPITools/openapi-generator/pull/8791"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-cqxr-xf2w-943w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-668"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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