Git GUI contains a vulnerability where cloning an untrusted repository and editing a file in a maliciously named directory can cause Git GUI to create or overwrite files for which the user has write permission. This issue affects versions from 1.6.3.1 up to but not including 2.25.0_1 and is fixed in later versions starting from 2.25.0_1. The vulnerability has a high severity with a CVSS score of 8.5.