{"affected":[{"affectedData":[{"product":"openapi-generator","vendor":"OpenAPITools","versions":[{"status":"affected","version":"< 5.1.0"}]}],"source":"security-advisories@github.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:openapi-generator:openapi_generator:*:*:*:*:*:*:*:*","matchCriteriaId":"E271BD89-5082-49B0-85BB-39B7AE2792BB","versionEndExcluding":"5.1.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"OpenAPI Generator allows generation of API client libraries, 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. OpenAPI Generator maven plug-in creates insecure temporary files during the process. The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version."},{"lang":"es","value":"OpenAPI Generator permite la generación de bibliotecas cliente API, stubs de servidor, documentación y configuración de forma automática dada una especificación OpenAPI. El uso de la función \"File.createTempFile\" en JDK dará como resultado la creación y el uso de archivos temporales no seguros que pueden dejar la aplicación y los datos del sistema vulnerables a ataques. El plugin Maven de OpenAPI Generator crea archivos temporales no seguros durante el proceso. El problema ha sido parcheado con \"Files.createTempFile\" y es lanzado en versión estable v5.1.0"}],"id":"CVE-2021-21429","lastModified":"2026-06-17T03:35:33.533","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":4.0,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"exploitabilityScore":2.5,"impactScore":1.4,"source":"security-advisories@github.com","type":"Secondary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.3,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"exploitabilityScore":1.8,"impactScore":1.4,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-04-27T20:15:08.763","references":[{"source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"],"url":"https://github.com/OpenAPITools/openapi-generator/pull/8795"},{"source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"],"url":"https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-867q-77cc-98mv"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"url":"https://github.com/OpenAPITools/openapi-generator/pull/8795"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"url":"https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-867q-77cc-98mv"}],"sourceIdentifier":"security-advisories@github.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-552"}],"source":"security-advisories@github.com","type":"Secondary"}]}