CVE-2026-34079— Flatpak affected by arbitrary file deletion on the host filesystem
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I. Basic Information for CVE-2026-34079
Vulnerability Information
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Vulnerability Title
Flatpak affected by arbitrary file deletion on the host filesystem
Source: NVD (National Vulnerability Database)
Vulnerability Description
Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory. This allows Flatpak apps to delete arbitrary files on the host. This vulnerability is fixed in 1.16.4.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Flatpak 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flatpak是Flatpak开源的一个用于在Linux上构建、分发和运行沙盒桌面应用程序的系统。 Flatpak 1.16.4之前版本存在路径遍历漏洞，该漏洞源于ld.so缓存清理未正确检查路径，可能导致删除主机上的任意文件。
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
II. Public POCs for CVE-2026-34079
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Same Patch Batch · flatpak · 2026-04-07 · 3 CVEs total
| CVE-2026-34078 | Flatpak has a complete sandbox escape leading to host file access and code execution in th | |
| CVE-2026-34080 | xdg-dbus-proxy has an eavesdrop filter bypass allowing message interception |
IV. Related Vulnerabilities
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- CVE-2026-34078
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Same vendor: flatpak
- CVE-2026-40354
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flatpak-builder has a path traversal leading to arbitrary fi - CVE-2026-34078
Flatpak has a complete sandbox escape leading to host file a - CVE-2026-34080
xdg-dbus-proxy has an eavesdrop filter bypass allowing messa - CVE-2024-42472
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Same weakness: CWE-22
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V. Comments for CVE-2026-34079
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