CVE-2026-40223

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

10/04/2026

Last modified:

10/04/2026

Description

In systemd 258 before 260, a local unprivileged user can trigger an assert when a Delegate=yes and User= unit exists and is running.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

4.70

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://github.com/systemd/systemd/security/advisories/GHSA-x4h8-rrrg-q78f