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OpenAdvisories
Low · 2.9 CVE-2026-40228 EUVD-2026-21498

In systemd 259, systemd-journald can send ANSI escape sequences to the terminals of arbitrary users when a "logger -p emerg" command is exe…

Published Apr 10, 2026 · Updated May 5, 2026 · Assigned by mitre

Description

In systemd 259, systemd-journald can send ANSI escape sequences to the terminals of arbitrary users when a "logger -p emerg" command is executed, if ForwardToWall=yes is set.

Affected products

VendorProductAffectedFixed
systemd systemd 259 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 systemd No fix yet —
Debian 13 systemd No fix yet —
Debian 12 systemd No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 systemd No fix yet —
Ubuntu 26.04 LTS systemd No fix yet —
Ubuntu 25.10 systemd No fix yet —
Ubuntu 24.04 LTS systemd No fix yet —
Ubuntu 22.04 LTS systemd No fix yet —
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 20.04 LTS systemd No fix yet —
Ubuntu Pro 18.04 LTS systemd No fix yet —
Ubuntu Pro 16.04 LTS systemd No fix yet —
Ubuntu Pro 14.04 LTS systemd No fix yet —
ReleasePackageFixed inAdvisory
Red Hat Hardened Images 1 systemd +20 260.1-2.1.hum1 RHSA-2026:7299

Advisories 2

References