CVE-2026-40228

systemd: systemd-journald: Unintended output to user terminals via logger command

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Severity

Low

Red Hat Product Security

2.9

CVSS 3.1

Review impact separately from score.

Published · April 11, 2026

Updated · August 31, 2026

Description

A flaw was found in systemd-journald. When the ForwardToWall=yes configuration is enabled, a local user who executes a logger -p emerg command can cause systemd-journald to send ANSI escape sequences to the terminals of other arbitrary users. This can lead to unintended output appearing on user terminals, potentially causing confusion or minor disruption.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 2.9
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE-117 · Improper Output Neutralization for Logs