Skip to content

Release history

Bubblewrap releases

Low-level unprivileged sandboxing tool used by Flatpak and similar projects

All releases

2 shown

v0.11.2 Breaking risk
Breaking changes
  • Setuid bubblewrap support deprecated; later versions will remove it
Security fixes
  • CVE-2026-41163: Setuid bubblewrap ptrace vulnerability allowing privilege escalation
Full changelog

This is a security update for CVE-2026-41163, which affects any system using bubblewrap 0.11.x using a setuid bubblewrap. Anyone using this should update to this release (or stop using setuid mode).

This release deprecates the support for setuid bubblewrap, and later versions of bubblewrap will no longer support it.

Bug fixes:

  • In setuid mode, don't run the low-privileged parts parts of the setup
    as dumpable, as that allows it to be ptraced which can lead to problems.
    This is CVE-2026-41163, and was reported by François Diakhate.

Enhancements:

  • New build option -Dsupport_setuid, which if set to false (which
    is the default) disables the support for setuid. Binaries built
    with this will refuse to run if made setuid. We recommend building
    normal bubblewrap binaries like this, which allows you to safely
    ignore any security issues that only affect setuid mode.
v0.11.1 Bug fix

Fixed SIGCHLD signal handling restoration for compatibility with Erlang and volumeicon, corrected namespace argument processing, improved CI for user namespaces, and fixed documentation links.

Beta — feedback welcome: [email protected]