Intel

AIKIDO-2026-550292

kotlin-stdlib is vulnerable to Incorrect Default Permissions

Incorrect Default PermissionsCVE-2020-29582 Published Jul 1, 2026

56

Medium Risk

This Affects:

JAVAkotlin-stdlib
0.0.1 - 2.0.21
Fixed in 2.1.0
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TL;DR

In JetBrains Kotlin, a vulnerable Java API is used for temporary file and folder creation. An attacker is able to read data from such files and list directories due to insecure permissions.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

kotlin-stdlib is vulnerable to Incorrect Default Permissions in versions 0.0.1 - 2.0.21.

How to fix this

Upgrade JetBrains Kotlin to the patch version.