# CVE-2026-40226

> CVE-2026-40226. CVSS 6.4 (CVSS 3.1), named in 1 status incident(s).

Canonical: https://rewindex.com/cve/CVE-2026-40226
Last updated: 2026-06-17T10:44:53Z

- Published: 2026-04-10 15:18 UTC · Updated: 2026-06-17 10:44 UTC · Assigner: mitre
- CVSS: 6.4 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS: n/a
- CISA KEV: no
- CWE: CWE-348

## Description

In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.

## Affected vendors and products

- systemd: systemd

## Status incidents that name it

- 2026-06-08 18:28 UTC [Aptible: Security Patching of Systemd Vulnerabilities](https://rewindex.com/company/aptible/incidents/kqgfk6z8gvzw.md) (says not affected, matched “No action is required” elsewhere in the notice): “…commitment to protecting customer workloads, we are applying patches for a newly disclosed Systemd vulnerability (CVE-2026-40226) across our platform. This patching will be rolled out automatically over the next several days. During this…”

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-40226)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-40226)
- [https://github.com/systemd/systemd/security/advisories/GHSA-9mj4-rrc3-gjcx](https://github.com/systemd/systemd/security/advisories/GHSA-9mj4-rrc3-gjcx)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2026-40226 · Markdown: https://rewindex.com/cve/CVE-2026-40226.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-40226 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:25.110Z