{"id":"UBUNTU-CVE-2026-103431","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]).","modified":"2026-10-02T22:30:18.825256379Z","published":"2026-10-02T00:00:00Z","upstream":["CVE-2026-103431"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-103431"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-103431"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543974"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-103431"}],"affected":[{"package":{"name":"collectl","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/collectl?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.7-1","3.6.9-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.6.9-1","binary_name":"collectl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103431.json"}},{"package":{"name":"collectl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/collectl?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.0-2","4.0.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"collectl","binary_version":"4.0.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103431.json"}},{"package":{"name":"collectl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/collectl?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.5-1"],"ecosystem_specific":{"binaries":[{"binary_name":"collectl","binary_version":"4.0.5-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103431.json"}},{"package":{"name":"collectl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/collectl?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"collectl","binary_version":"4.3.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103431.json"}},{"package":{"name":"collectl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/collectl?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"collectl","binary_version":"4.3.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103431.json"}},{"package":{"name":"collectl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/collectl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3.1-1","binary_name":"collectl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103431.json"}},{"package":{"name":"collectl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/collectl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1","4.3.20.1-1","4.3.20.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"collectl","binary_version":"4.3.20.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103431.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}