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{}

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{"acknowledgement": "This issue was discovered by Laurence Oberman (Red Hat) and Nathan Scott (Red Hat).", "bugzilla": {"description": "collectl: collectl: colmux does not sanitize ANSI/VT100 terminal escape sequences in data received from remote collectl instances", "id": "2543974", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543974"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-150", "details": ["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])."], "mitigation": {"lang": "en:us", "value": "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."}, "name": "CVE-2026-103431", "public_date": "2026-09-30T15:26:50Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-103431\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-103431"], "statement": "This vulnerability is rated as having an Important impact because an unprivileged local user on a monitored host can cross security boundaries to compromise the terminal session of an administrative operator. In enterprise monitoring environments, the colmux aggregation tool consolidates process telemetry from distributed systems running collectl and displays it directly to administrative consoles. Because control characters from remote process names are processed without neutralization, this enables arbitrary screen manipulation and, depending on the operator's terminal configuration, potential command injection. Although exploitation requires active operator observation and specific terminal capabilities, the ability to facilitate remote privilege escalation across systems warrants the Important rating.", "threat_severity": "Important"}

{"created": "2026-10-01T02:00:15.512984+00:00", "updated": "2026-10-01T02:00:15.512999+00:00", "vendors": []}