CVE-2026-74859
Gnome-tweaks: path traversal in theme installer
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Gnome-tweaks: path traversal in theme installer
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.
- Record
CVE-2026-74859- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H - Weakness
- CWE-22
- Updated
- 2026-11-06
EUVDEUVD-2026-72673
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.
- Record
EUVD-2026-72673- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-39p2-wfx9-r3hc
The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating...
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.
- Record
GHSA-39p2-wfx9-r3hc- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-74859- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H - Weakness
- CWE-22
- Updated
- 2026-11-06
OSVDEBIAN-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 ../ path traversal, absolute paths, or symlink entries.
- Record
DEBIAN-CVE-2026-74859- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-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 ../ path traversal, absolute paths, or symlink entries.
- Record
UBUNTU-CVE-2026-74859- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gnome-tweaksDebian:12 | All versions, plus listed versions 42~beta-445.1-146.0-146.0-246.1-1 Show 5 moreShow less46~beta-146~beta-249.0-149~rc-149~rc-2 | None known |
gnome-tweaksDebian:13 | All versions, plus listed versions 46.1-149.0-149~rc-149~rc-2 | None known |
gnome-tweaksDebian:14 | All versions, plus listed versions 46.1-149.0-149~rc-149~rc-2 | None known |
gnome-tweaksUbuntu:18.04:LTS | All versions, plus listed versions 3.27.4-1ubuntu13.27.90.2-1ubuntu13.27.92-1ubuntu13.28.0-13.28.1-1 | None known |
gnome-tweaksUbuntu:20.04:LTS | All versions, plus listed versions 3.34.0-23.34.0-2ubuntu1 | None known |
gnome-tweaksUbuntu:22.04:LTS | All versions, plus listed versions 40.0-340.0-440.0-540.0-642~beta-142~beta-1ubuntu142~beta-1ubuntu2 | None known |
gnome-tweaksUbuntu:24.04:LTS | All versions, plus listed versions 42~beta-445.1-146~beta-146~beta-246.0-146.0-2 | None known |
gnome-tweaksUbuntu:26.10 | All versions, plus listed versions 49.0-1 | None known |
gnome-tweaksUbuntu:26.04:LTS | All versions, plus listed versions 46.1-149.0-1 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | CVE List | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-74859 is a medium vulnerability (CVSS 6.8) in Red Hat Enterprise Linux 8, published September 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.