CVE-2026-74859
Gnome-tweaks: path traversal in theme installer
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.
INFO
Published Date :
Sept. 8, 2026, 9:18 a.m.
Last Modified :
Sept. 8, 2026, 9:18 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-74859
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Validate archive member paths before extraction.
- Sanitize file paths to prevent traversal.
- Update the gnome-tweaks application.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-74859.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-74859 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2529702 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74859 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-74859
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-74859 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74859 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Sep. 08, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H Added CWE CWE-22 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/74xxx/CVE-2026-74859.json">CVE-2026-74859</a> Added Reference https://access.redhat.com/security/cve/CVE-2026-74859 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2529702