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CVE-2024-32462— Flatpak vulnerable to a sandbox escape via RequestBackground portal due to bad argument parsing

Quick assessment

Affected
flatpak flatpak
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flatpak是一套用于Linux桌面应用计算机环境的应用程序虚拟化系统。 Flatpak 1.10.9、1.12.9、1.14.6 和 1.15.8 之前版本存在安全漏洞，该漏洞源于将 Flatpak 与 xdg-desktop-portal 结合使用时可能导致沙箱逃逸。

CVSS 8.4 · High EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1611 · Escape to Host
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I. Basic Information for CVE-2024-32462

Vulnerability Information
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Vulnerability Title
Flatpak vulnerable to a sandbox escape via RequestBackground portal due to bad argument parsing
Source: CVE Program / CVE List V5
Vulnerability Description
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. in versions before 1.10.9, 1.12.9, 1.14.6, and 1.15.8, a malicious or compromised Flatpak app could execute arbitrary code outside its sandbox. Normally, the `--command` argument of `flatpak run` expects to be given a command to run in the specified Flatpak app, optionally along with some arguments. However it is possible to instead pass `bwrap` arguments to `--command=`, such as `--bind`. It's possible to pass an arbitrary `commandline` to the portal interface `org.freedesktop.portal.Background.RequestBackground` from within a Flatpak app. When this is converted into a `--command` and arguments, it achieves the same effect of passing arguments directly to `bwrap`, and thus can be used for a sandbox escape. The solution is to pass the `--` argument to `bwrap`, which makes it stop processing options. This has been supported since bubblewrap 0.3.0. All supported versions of Flatpak require at least that version of bubblewrap. xdg-desktop-portal version 1.18.4 will mitigate this vulnerability by only allowing Flatpak apps to create .desktop files for commands that do not start with --. The vulnerability is patched in 1.15.8, 1.10.9, 1.12.9, and 1.14.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
Flatpak 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flatpak是一套用于Linux桌面应用计算机环境的应用程序虚拟化系统。 Flatpak 1.10.9、1.12.9、1.14.6 和 1.15.8 之前版本存在安全漏洞，该漏洞源于将 Flatpak 与 xdg-desktop-portal 结合使用时可能导致沙箱逃逸。
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
flatpak flatpak < 1.10.9 -

II. Public POCs for CVE-2024-32462

# POC Description Source Link Shenlong Link
1 CVE-2024-32462 code exec sbx escape https://github.com/SpiralBL0CK/CVE-2024-32462 POC Details
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8183 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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III. Intelligence Information for CVE-2024-32462

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Patches & Fixes for CVE-2024-32462 (4)

Vendor Advisories for CVE-2024-32462 (1)

Mailing List Discussions for CVE-2024-32462 (3)

IV. Related Vulnerabilities

Same product: flatpak
Same vendor: flatpak
Same weakness: CWE-88

V. Comments for CVE-2024-32462

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