CVE-2026-40228 Information disclosure in systemd

What is CVE-2026-40228?

CVE-2026-40228 is a low-severity vulnerability in Systemd Project Systemd, published on 10 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-669

Which versions are affected by CVE-2026-40228?

It affects 1 product.

Products include Systemd Project Systemd.

How do I fix CVE-2026-40228?

Apply the vendor's patch.

Is CVE-2026-40228 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40228 exists.

Other vulnerabilities in Systemd Project Systemd

• CVE-2015-7510 Memory corruption in n/a Critical 9.8
• CVE-2017-1000082 Privilege escalation in n/a Critical 9.8
• CVE-2016-10156 Privilege escalation in n/a High 7.8
• CVE-2017-9445 Memory corruption in n/a High 7.5
• CVE-2017-9217 Null dereference in n/a High 7.5

All Systemd Project Systemd vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-40228, GHSA-grjh-583f-v73h, UBUNTU-CVE-2026-40228.