| Name | CVE-2026-74859 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1147509 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| gnome-tweaks (PTS) | bookworm | 42~beta-4 | vulnerable |
| trixie | 46.1-1 | vulnerable |
| forky, sid | 49.0-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| gnome-tweaks | source | (unstable) | (unfixed) | | | 1147509 |
Notes
[trixie] - gnome-tweaks <no-dsa> (Minor issue)
[bookworm] - gnome-tweaks <postponed> (Minor issue, requires importing a malicious theme)
https://gitlab.gnome.org/GNOME/gnome-tweaks/-/issues/542