CVE-2021-21428

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.

• CWE-269
• CWE-668

• https://github.com/OpenAPITools/openapi-generator/pull/8788Patch, Third Party Advisory
• https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwfExploit, Third Party Advisory
• https://github.com/OpenAPITools/openapi-generator/pull/8788Patch, Third Party Advisory
• https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwfExploit, Third Party Advisory

Published

May 10, 2021

Last Modified

Jun 17, 2026

Status

Modified

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