CVE-2021-21428: Improper Privilege Management

May 10, 2021 (updated June 30, 2023)

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.

References

nvd.nist.gov/vuln/detail/CVE-2021-21428

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