CVE-2026-47128 nono: Sandbox escape on Linux via D-Bus: `systemd-run --user`
Attackers can escape the nono sandbox by accessing local D-Bus sockets, enabling code execution and privilege escalation on Linux systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47128?
CVE-2026-47128 is a medium-severity vulnerability in always-further nono, published on 20 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
nono is software that allows users to run AI agents in a zero-latency sandbox. Prior to version 0.55.0, the nono Landlock/seccomp policies allow access to local Unix domain sockets (concrete and abstract). This allows an easy sandbox escape by talking to the per-user systemd dbus socket. Version 0.55.0 patches the issue.
Weakness: CWE-863
Which versions are affected by CVE-2026-47128?
2 open source packages ship an affected version, including nono-cli.
| Package | Affected | Fixed in |
|---|---|---|
nono-cli crates.io | All versions | 0.55.0 |
nono-cli crates.io | All versions | 0.55.0 |
How do I fix CVE-2026-47128?
Upgrade nono-cli to 0.55.0 or later.
Is CVE-2026-47128 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47128 exists.
Sources
Also known as GHSA-27vp-2mmc-vmh3.