CVE-2026-103431

Description

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]).

CVSS Vector

References

• https://access.redhat.com/security/cve/CVE-2026-103431
• https://bugzilla.redhat.com/show_bug.cgi?id=2543974