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]).

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Fixes

Solution

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Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

History

Thu, 01 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 09:00:00 +0000

Type Values Removed Values Added
Title collectl: collectl: colmux does not sanitize ANSI/VT100 terminal escape sequences in data received from remote collectl instances Collectl: collectl: colmux does not sanitize ansi/vt100 terminal escape sequences in data received from remote collectl instances
References

Thu, 01 Oct 2026 00:15:00 +0000

Type Values Removed Values Added
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]).
Title collectl: collectl: colmux does not sanitize ANSI/VT100 terminal escape sequences in data received from remote collectl instances
Weaknesses CWE-150
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N'}

threat_severity

Important


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: fedora

Published:

Updated: 2026-10-01T15:24:12.796Z

Reserved: 2026-09-30T15:19:13.980Z

Link: CVE-2026-103431

cve-icon Vulnrichment

Updated: 2026-10-01T15:24:09.200Z

cve-icon NVD

Status : Deferred

Published: 2026-10-01T09:17:07.717

Modified: 2026-10-01T16:17:36.177

Link: CVE-2026-103431

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-30T15:26:50Z

Links: CVE-2026-103431 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T02:00:15Z

Weaknesses