CVE-2021-21429

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.

• CWE-552

• https://github.com/OpenAPITools/openapi-generator/pull/8795Patch, Third Party Advisory
• https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-867q-77cc-98mvPatch, Third Party Advisory
• https://github.com/OpenAPITools/openapi-generator/pull/8795Patch, Third Party Advisory
• https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-867q-77cc-98mvPatch, Third Party Advisory

Published

Apr 27, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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