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Vulnerability record · CVE-2026-40226 · published 10 April 2026

CVE-2026-40226: Systemd project systemd vulnerability

Systemd Project · Systemd

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

6.4 CVSS 3.1 Medium EPSS 0.09% · top 99.4% CWE-348 · CWE-348
6.4CVSS 3.1 base score
0.09%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

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

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/systemd/systemd/security/advisories/GHSA-9mj4-rrc3-gjcx Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-40226), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.