CVE-2026-47128

nono: Sandbox escape on Linux via D-Bus: `systemd-run --user`

State: Published
Severity: 6.1 Medium
Published: Jul 20, 2026
Updated: Jul 21, 2026
Reserved: May 18, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	6.1 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L	GitHub_M

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
nonoalways-further	< 0.55.0Affected

References

https://github.com/nolabs-ai/nono/security/advisories/GHSA-27vp-2mmc-vmh3

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