Description
bubblewrap is a low-level unprivileged sandboxing tool. From version 0.11.0 to before version 0.11.2, if bubblewrap is installed in setuid mode then the user can use ptrace to attach to bubblewrap and control the unprivileged part of the sandbox setup phase. This allows the attacker to arbitrarily use the privileged operations, and in particular the "overlay mount" operation, allowing the creation of overlay mounts which is otherwise not allowed in the setuid version of bubblewrap. This issue has been patched in version 0.11.2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| containers | bubblewrap | >= 0.11.0, < 0.11.2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | bubblewrap | 0.11.2-1 | — |
| Debian 13 | bubblewrap | 0.11.0-2+deb13u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | bubblewrap | 0.11.1-1ubuntu0.1 | — |
| Ubuntu 25.10 | bubblewrap | 0.11.0-2ubuntu0.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | bubblewrap | 0.12.0-1.hum1 | RHSA-2026:60368 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | bubblewrap | 0.11.2-1.1 | openSUSE-SU-2026:10671-1 |
Advisories 2
- RHSA-2026:60368 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Sep 22, 2026
- openSUSE-SU-2026:10671-1 bubblewrap-0.11.2-1.1 on GA media SUSE / openSUSE Security Updates · May 5, 2026