CVE-2026-103431

High severity, CVSS 7.7. EPSS: 0.2% chance of exploitation in the next 30 days.

colmux in collectl before 4.3.20.2 does not sanitize ANSI/VT100 terminal escape sequences in data received from remote collectl instances before displaying it, allowing a local user on a monitored host to inject escape sequences into the terminal of an operator running colmux, via a crafted process name (argv[0]).

Published 2026-10-01. Last modified 2026-10-01.