CVE-2021-21430: Creation of Temporary File in Directory with Insecure Permissions in auto-generated Java, Scala code
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.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2021-21430?
The severity of CVE-2021-21430 is classified as high due to the potential exposure of insecure temporary files.
How do I fix CVE-2021-21430?
To fix CVE-2021-21430, update the OpenAPI Generator to version 5.1.1 or later.
What software is affected by CVE-2021-21430?
CVE-2021-21430 affects OpenAPI Generator versions prior to 5.1.1.
What kind of vulnerability is CVE-2021-21430?
CVE-2021-21430 is a security vulnerability related to the insecure handling of temporary files in the OpenAPI Generator.
What are the risks of CVE-2021-21430?
The risks of CVE-2021-21430 include potential exposure of sensitive information due to insecure temporary files.