{"id":"CVE-2021-21428","state":"PUBLISHED","title":"Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI-Generator online generator","description":"Openapi generator is a java tool which allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. openapi-generator-online creates insecure temporary folders with File.createTempFile during the code generation process. The insecure temporary folders store the auto-generated files which can be read and appended to by any users on the system. The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version.","publishedAt":"2021-05-10T18:50:12.000Z","updatedAt":"2024-08-03T18:09:16.010Z","severity":{"score":9.3,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["OpenAPITools openapi-generator"],"affected":[{"vendor":"OpenAPITools","product":"openapi-generator","versions":[{"version":"< 5.1.0","status":"affected"}]}],"references":["https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf","https://github.com/OpenAPITools/openapi-generator/pull/8788"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T19:47:59.168Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/21xxx/CVE-2021-21428.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-21428","state":"PUBLISHED","datePublished":"2021-05-10T18:50:12.000Z","dateUpdated":"2024-08-03T18:09:16.010Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2020-12-22T00:00:00.000Z"},"containers":{"cna":{"title":"Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI-Generator online generator","descriptions":[{"lang":"en","value":"Openapi generator is a java tool which allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. openapi-generator-online creates insecure temporary folders with File.createTempFile during the code generation process. 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