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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是GNOME基金会的一款调整桌面环境外观与行为的系统设置工具。 gnome-tweaks存在路径遍历漏洞，该漏洞源于shell主题安装程序在解压用户提供的ZIP存档时未验证存档成员路径，可能导致通过../路径遍历、绝对路径或符号链接条目将文件写入~/.themes目录之外。

CVSS 6.8 · Medium EPSS 0.17% · P6

Affected Version Matrix 2

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 8 any affected
Red Hat Red Hat Enterprise Linux 9 any affected
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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
Vulnerability Title
gnome-tweaks 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
gnome-tweaks是GNOME基金会的一款调整桌面环境外观与行为的系统设置工具。 gnome-tweaks存在路径遍历漏洞，该漏洞源于shell主题安装程序在解压用户提供的ZIP存档时未验证存档成员路径，可能导致通过../路径遍历、绝对路径或符号链接条目将文件写入~/.themes目录之外。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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

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III. Intelligence Information for CVE-2026-74859

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Vendor Advisories for CVE-2026-74859 (2)

Same Patch Batch · Red Hat · 2026-09-08 · 7 CVEs total

CVE-2026-78234 9.9 CRITICAL Hawtio-operator: hawtio-operator: service-ca signing oracle allows arbitrary-cn certificat
CVE-2026-74860 8.5 HIGH Libxml2: double-free/uaf in libxml2 python bindings
CVE-2026-77968 8.2 HIGH Hawtio-operator: hawtio-operator: cluster-wide secrets read/write granted to operator serv
CVE-2026-76561 7.2 HIGH Pki-core: dogtag/pki: certprofile-import allows code execution via unsanitized profile con
CVE-2026-18090 6.1 MEDIUM Gdk-pixbuf: gdk-pixbuf: heap out-of-bounds read in uncompress() via crafted icns rle block
CVE-2026-86564 3.3 LOW Dpdk: dpdk: missing length validation before reading command_data in virtio-net control qu

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 8
Same vendor: Red Hat
Same weakness: CWE-22

V. Comments for CVE-2026-74859

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