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High USN-5191-1 1 CVE

flatpak vulnerability

Published Dec 14, 2021 · Updated Apr 22, 2026

Ecosystem: Ubuntu

Summary

It was discovered that Flatpak incorrectly handled certain AF_UNIX sockets.
An attacker could use this to specially craft a Flatpak application that
could escape sandbox confinement.

Fixed packages 2

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS flatpak 1.0.9-0ubuntu0.4
Ubuntu · 20.04 LTS 20.04:LTS flatpak 1.6.5-0ubuntu0.4

Vulnerabilities 1

  • High 8.8
    CVE-2021-41133

    Sandbox bypass via recent VFS-manipulating syscalls

    Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.4 and 1.12.0, Flatpak apps with direct access to AF_UNIX sockets such as those used by Wayland, Pipewire or pipewire-pulse can trick…

    Flatpak Flatpak flatpak flatpak Debian Ubuntu Alpine

References

  • report
    https://ubuntu.com/security/CVE-2021-41133