CVE-2021-21430 Information

Description

OpenAPI Generator allows generation of API client libraries (SDK generation) 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. Auto-generated code (Java Scala) that deals with uploading or downloading binary data through API endpoints will create insecure temporary files during the process. Affected generators: java (jersey2 okhttp-gson (default library)) scala-finch. The issue has been patched with Files.createTempFile and released in the v5.1.0 stable version.

CVSS Vector

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

Reference

https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-cqxr-xf2w-943w https://github.com/OpenAPITools/openapi-generator/pull/8787 https://github.com/OpenAPITools/openapi-generator/pull/8791

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5