CVE catalog

CVE-2026-40223

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.

[CVE catalog]

Severity: Medium · CVSS 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: Mar 23, 2026, 11:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.09% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	systemd	sid	`262.1-1`	fixed
Debian	systemd	forky	`262-1`	fixed
Debian	systemd	trixie	`257.13-1~deb13u1`	not affected
Debian	systemd	bookworm	`252.39-1~deb12u2`	not affected
Debian	systemd	bookworm-security	`252.38-1~deb12u1`	not affected
Cpe	systemd	Not reported	`260`	fixed
Cpe	systemd	Not reported	Not reported	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	systemd	source	sid	`260~rc1-1`	not yet assigned	Not reported	Not reported
Debian	systemd	source	forky	`260~rc1-1`	not yet assigned	Not reported	Not reported
Debian	systemd	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	systemd	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Cpe	systemd	cpe	Not reported	`260`	Not reported	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libnss-myhostname]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libnss-mymachines]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libnss-resolve]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libnss-systemd]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libpam-systemd]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libsystemd0]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libsystemd-dev]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libsystemd-shared]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libudev1]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[libudev-dev]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd]Not affected
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd-boot]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd-boot-efi]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd-container]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd-coredump]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd-dev]Not affected
Source package: [systemd]
Details (2)
- 254.26-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
[systemd-homed]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd-journal-remote]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd-oomd]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
[systemd-resolved]Not affected
Source package: [systemd]
Details (6)
- 252.39-1~deb12u2 · amd64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 252.39-1~deb12u2 · arm64 · bookworm
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 254.26-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · amd64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm
- 252.38-1~deb12u1 · arm64 · bookworm-security
  Not affected
  nvd · systemd · debian · bookworm

Next results

Observed: Oct 23, 2026, 10:39:43 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]