CVE-2026-74859

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 29/100
Published: 2026-09-08 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: Required
S: Unchanged
C: Low
I: High
A: High

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 & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2529702
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

29 / 100
✓ Low complexity

CVSS Score

6.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H

EPSS — Exploitation Probability

0.17%
Raw Score 0.001730
Percentile 6.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00173
2026-11-12
0.00173
2026-11-10
0.00173
2026-11-09
0.00173
2026-11-08
0.00173
2026-11-07
0.00173
2026-11-06
0.00173
2026-11-05
0.00173

Intelligence Sources

mitre ref →
nvd ref →