CVE catalog
CVE-2026-74859
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 .
- Severity
- Medium · CVSS 6.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.17% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | gnome-tweaks | sid | 49.0-1 | vulnerable |
| Debian | gnome-tweaks | forky | 49.0-1 | vulnerable |
| Debian | gnome-tweaks | trixie | 46.1-1 | vulnerable |
| Debian | gnome-tweaks | bookworm | 42~beta-4 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gnome-tweaks | source | sid | (unfixed) | not yet assigned | Not reported | [1147509] |
| Debian | gnome-tweaks | source | forky | (unfixed) | not yet assigned | Not reported | [1147509] |
| Debian | gnome-tweaks | source | trixie | (unfixed) | not yet assigned | Not reported | [1147509] |
| Debian | gnome-tweaks | source | bookworm | (unfixed) | not yet assigned | Not reported | [1147509] |
Notes
[trixie] gnome-tweaks: Minor issue [bookworm] gnome-tweaks: Minor issue, requires importing a malicious theme
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [gnome-tweaks]Affected
Details (2)
42~beta-4· all · bookwormAffected
nvd · gnome-tweaks · debian · bookworm; nvd · gnome-tweaks · debian · 12
42~beta-4· all · bookwormAffected
nvd · gnome-tweaks · debian · bookworm; nvd · gnome-tweaks · debian · 12
[Debian 13 (Trixie)]
- [gnome-tweaks]Affected
Details (2)
46.1-1· all · trixieAffected
nvd · gnome-tweaks · debian · 13
46.1-1· all · trixieAffected
nvd · gnome-tweaks · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-74859]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-74859]
- [https://security-tracker.debian.org/tracker/CVE-2026-74859]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74859.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]