CVE-2021-21429

LowCVSS 3.3/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 3.3/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-552

Affected software

Vendor	Product	Versions
OpenAPITools	openapi-generator	< 5.1.0

References

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

Timeline

Published: Apr 27, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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