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vulnerabilityCVE-2026-40226
Name
CVE-2026-40226
Source
NVD ( link)Debian ( link)
Description
In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.
Published Date
Updated Date
Workaround
-

Analysis#


Affected Component
Analysis
systemd
Patched

Vulnerability Ratings#


6.4
CVSSv31
NaN
other

Others affected components#


Name
Project
Project Version
Version
Status
buildroot
2025.02.x
256.17
Exploitable
buildroot
master
258.7
Not Affected
yocto
kirkstone
250.14
Exploitable
yocto
master
259.5
Not Affected

Resolved with patches#


systemd (yocto:scarthgap)

#
Title
Author
Resolve
1
nspawn: apply BindUser/Ephemeral from settings file only if
Luca Boccassi <luca.boccassi@gmail.com>
CVE-2026-40226
2
nspawn: normalize pivot_root paths
Luca Boccassi <luca.boccassi@gmail.com>
CVE-2026-40226