CVE-2025-27613: Gitk can create and truncate files in the user's home directory

Description

Gitk is a Tcl/Tk based Git history browser. Starting with 1.7.0, when a user clones an untrusted repository and runs gitk without additional command arguments, files for which the user has write permission can be created and truncated. The option Support per-file encoding must have been enabled before in Gitk's Preferences. This option is disabled by default. The same happens when Show origin of this line is used in the main window (regardless of whether Support per-file encoding is enabled or not). This vulnerability is fixed in 2.43.7, 2.44.4, 2.45.4, 2.46.4, 2.47.3, 2.48.2, 2.49.1, and 2.50.1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

j6t gitk

>= 1.7.0, < 2.43.7affected
>= 2.44.0, < 2.44.4affected
>= 2.45.0, < 2.45.4affected
>= 2.46.0, < 2.46.4affected
>= 2.47.0, < 2.47.3affected
>= 2.48.0, < 2.48.2affected
>= 2.49.0, < 2.49.1affected
>= 2.50.0, < 2.50.1affected

CVE-2025-27613

Gitk can create and truncate files in the user's home directory

Description

Affected products

j6t gitk

References