CVE-2021-21430CWE-269

Creation of Temporary File in Directory with Insecure Permissions in auto-generated Java, Scala code

Medium · published May 10, 2021

CVSS v3.1
6.2
EPSS
0%
Percentile
33.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00404 · 33.5th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2021-05-10T19:25Z
EPSS history
Timeline
  • 10 MAY 19:25Z
    Creation of Temporary File in Directory with Insecure Permissions in auto-generated Java, Scala code
    cvelistv5