CVE-2026-74859
MEDIUM
NVD
CVSS Score
6.8
Severity
MEDIUM
Published
Sep 08, 2026
Vendor
unknown
Description
The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside ~/.themes by using ../ path traversal, absolute paths, or symlink entries.