VulnerabilityAwaiting Analysis

CVE-2026-74859

The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths.

MEDIUM 6.8EPSS 0.13%

Does this matter?

Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.8 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H
EPSS: 0.13% probability · 3th percentile
CISA KEV: Not listed
Weakness: CWE-22
Source: secalert@redhat.com

References

https://access.redhat.com/security/cve/CVE-2026-74859
https://bugzilla.redhat.com/show_bug.cgi?id=2529702

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.