{"id":"CVE-2026-103431","aliases":["DEBIAN-CVE-2026-103431","EUVD-2026-90576","GHSA-ggwj-h7wp-pg4f","UBUNTU-CVE-2026-103431"],"status":"published","title":"Collectl: collectl: colmux does not sanitize ansi/vt100 terminal escape sequences in data received from remote collectl instances","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]).","severity":{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00182,"percentile":0.07821,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-150"],"published":"2026-10-01T08:35:40Z","modified":"2026-10-28T02:31:08Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1","4.3.20.1-1","4.3.20.1-2","4.3.20.2-1","4.3.6-2"]},{"source":"osv","ecosystem":"Debian:13","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1","4.3.20.1-1","4.3.20.1-2","4.3.20.2-1","4.3.6-2"]},{"source":"osv","ecosystem":"Debian:14","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1","4.3.20.1-1","4.3.20.1-2","4.3.20.2-1","4.3.6-2"]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.7-1","3.6.9-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.0-2","4.0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.5-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.20.1-2","4.3.20.2-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"collectl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-1","4.3.20.1-1","4.3.20.1-2"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-103431","tags":["vdb-entry","x_refsource_REDHAT","advisory","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543974","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103431","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-ggwj-h7wp-pg4f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103431.json","tags":["advisory"]},{"url":"https://github.com/sharkcz/collectl","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-103431","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-103431","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-103431","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-103431","title":"Collectl: collectl: colmux does not sanitize ansi/vt100 terminal escape sequences in data received from remote collectl instances","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]).","status":"published","published":"2026-10-01T08:35:40.824Z","modified":"2026-10-01T15:24:12.796Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-150"],"updated_at":"2026-11-02T13:34:37.420074Z"}],"euvd":[{"id":"EUVD-2026-90576","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]).","status":"published","published":"2026-10-01T08:35:40Z","modified":"2026-10-01T15:24:12Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T17:27:44.672309Z"}],"ghsa":[{"id":"GHSA-ggwj-h7wp-pg4f","title":"colmux in collectl before 4.3.20.2 does not sanitize ANSI/VT100 terminal escape sequences in data...","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]).","status":"published","published":"2026-10-01T09:30:34Z","modified":"2026-10-01T09:30:35Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-150"],"updated_at":"2026-11-02T15:12:39.341866Z"}],"nvd":[{"id":"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]).","status":"published","published":"2026-10-01T09:17:07.717Z","modified":"2026-10-01T16:17:36.177Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-150"],"updated_at":"2026-11-02T14:12:53.097633Z"}],"osv":[{"id":"CVE-2026-103431","title":"Collectl: collectl: colmux does not sanitize ansi/vt100 terminal escape sequences in data received from remote collectl instances","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]).","status":"published","published":"2026-10-01T08:35:40.824Z","modified":"2026-10-28T02:31:08.085758217Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-150"],"updated_at":"2026-11-02T15:44:54.236592Z"},{"id":"DEBIAN-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]).","status":"published","published":"2026-10-01T09:17:07.717Z","modified":"2026-10-03T01:00:08.201128279Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:48.903138Z"},{"id":"UBUNTU-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]).","status":"published","published":"2026-10-01T09:17:00Z","modified":"2026-10-17T12:57:58.426083854Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T16:55:58.519486Z"}]}}