CVE-2021-21428

    Dashboard / Vulnerabilities / CVE-2021-21428

    CVE-2021-21428

    Published: 10 May 2021Last Modified: 9 Jul 2026

    Summary:

    Details: Openapi generator is a java tool which allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec. openapi-generator-online creates insecure temporary folders with File.createTempFile during the code generation process. The insecure temporary folders store the auto-generated files which can be read and appended to by any users on the system. The issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version.

    References: https://github.com/OpenAPITools/openapi-generator/pull/8788, https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-23x4-m842-fmwf

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -e023eaa8218da996140148161978953cc698d014

    Affected versions

    v5.0.0
    v5.0.0-beta3
    v5.0.0-beta2
    v5.0.0-beta

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-21428 | CVE-DB