CVE-2026-47128: nono: Sandbox escape on Linux via D-Bus: `systemd-run --user`

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-20 · updated 2026-10-24
Weakness: CWE-863

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.

Affected products

always-further nono: before 0.55.0

References

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

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