CVE-2026-74859— Gnome-tweaks: path traversal in theme installer
Quick assessment
Affected
Red Hat Red Hat Enterprise Linux 8
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
gnome-tweaks 中的 shell 主题安装器在解包用户提供的 ZIP 文件时，未对文件路径进行校验。因此，经过精心构造的主题归档文件可以通过使用 路径遍历、绝对路径或符号链接条目，将文件写入 目录之外的位置。
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I. Basic Information for CVE-2026-74859
Vulnerability Information
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Vulnerability Title
Gnome-tweaks: path traversal in theme installer
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
II. Public POCs for CVE-2026-74859
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-74859 (2)
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V. Comments for CVE-2026-74859
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