{"id":"CVE-2021-34182","aliases":["DEBIAN-CVE-2021-34182","EUVD-2021-20844","GHSA-jcg3-g4m6-7ch5","UBUNTU-CVE-2021-34182"],"status":"published","title":"An issue in ttyd v.1.6.3 allows attacker to execute arbitrary code via default configuration...","description":"An issue in ttyd v.1.6.3 allows attacker to execute arbitrary code via default configuration permissions.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00865,"percentile":0.59116,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-276"],"published":"2023-02-17T00:00:00Z","modified":"2026-10-23T18:03:27Z","fixes":[{"ecosystem":"Debian:14","package":"ttyd","fixed_in":["1.6.3-2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:14","package":"ttyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.3-2"}]}],"versions":["1.6.3-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"ttyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.3-3","1.6.3+20210924-1","1.6.3+20210924-1build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"ttyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.3-2","1.7.4-1","1.7.4-1build1","1.7.4-1build2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"ttyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.7-2","1.7.7-4"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"ttyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.7-4build1","1.7.7-4build2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"ttyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.7-4","1.7.7-4build1"]}],"products":[{"vendor":"ttyd_project","product":"ttyd"}],"references":[{"url":"https://github.com/tsl0922/ttyd/issues/692","tags":["x_transferred","Exploit","Issue Tracking","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34182"},{"url":"https://github.com/advisories/GHSA-jcg3-g4m6-7ch5"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-34182","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-34182","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-34182","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-34182","description":"An issue in ttyd v.1.6.3 allows attacker to execute arbitrary code via default configuration permissions.","status":"published","published":"2023-02-17T00:00:00Z","modified":"2025-03-18T16:14:58.605Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:33:11.59359Z"}],"euvd":[{"id":"EUVD-2021-20844","description":"An issue in ttyd v.1.6.3 allows attacker to execute arbitrary code via default configuration 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