CVE-2021-21430: medium-severity vulnerability in OpenAPITools openapi-generator
Creation of Temporary File in Directory with Insecure Permissions in auto-generated Java, Scala code
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.2epss 0.4%
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:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
OpenAPITools · openapi-generatorRelated CVEs — OpenAPITools openapi-generator
In the same product, most dangerous first.
CVE-2024-35219HIGHOpenAPI Generator Online - Arbitrary File Read/DeleteEPSS 3.6%CVE-2021-21428CRITICALCreation of Temporary File in Directory with Insecure Permissions in the OpenAPI-Generator online generatorEPSS 0.4%CVE-2021-21429MEDIUMCreation of Temporary File in Directory with Insecure Permissions in the OpenAPI Generator Maven pluginEPSS 0.3%