In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.
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Score 6.4 from GitHub Security Advisory published 2026-04-10. NVD baseline CVSS 6.4; sources differ by 0.0.
In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.
April 10, 2026
April 17, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | systemd-main-260.1-2.1.hum1 | 2026-04-09 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-40226
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