CVE-2026-40223

EUVD-2026-21394
In systemd 258 before 260, a local unprivileged user can trigger an assert when a Delegate=yes and User=<unset> unit exists and is running.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mitreCNA
4.7 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
systemd_projectsystemd
258 ≤
𝑥
< 260
CNA
Debian logo
Debian Releases
Debian Product
Codename
systemd
bookworm
252.39-1~deb12u1
fixed
bookworm (security)
252.38-1~deb12u1
fixed
bullseye
247.3-7+deb11u5
fixed
bullseye (security)
247.3-7+deb11u7
fixed
forky
260.1-1
fixed
sid
260.1-1
fixed
trixie
257.9-1~deb13u1
fixed
Common Weakness Enumeration
References
https://github.com/systemd/systemd/security/advisories/GHSA-x4h8-rrrg-q78f