CVE-2026-74859

medium

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2529702

https://access.redhat.com/security/cve/CVE-2026-74859

Details

Source: Mitre, NVD

Published: 2026-09-08

Updated: 2026-09-08

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 6.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H

Severity: Medium

EPSS

EPSS: 0.00126