{"id":"CVE-2020-24392","aliases":["DEBIAN-CVE-2020-24392","EUVD-2021-0687","GHSA-p6p8-q4pj-f74m","UBUNTU-CVE-2020-24392"],"status":"published","title":"Improper Certificate Validation in twitter-stream","description":"In voloko twitter-stream 0.1.10, missing TLS hostname validation allows an attacker to perform a man-in-the-middle attack against users of the library (because eventmachine is misused).","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00884,"percentile":0.59681,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2021-02-19T22:42:17Z","modified":"2026-10-26T12:01:02Z","affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"twitter-stream","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.1.16"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"ruby-twitter-stream","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.16-4"]},{"source":"osv","ecosystem":"RubyGems","package":"twitter-stream","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.1.16"}]}],"versions":["0.1.0","0.1.1","0.1.10","0.1.11","0.1.12","0.1.13","0.1.14","0.1.15","0.1.16","0.1.2","0.1.3","0.1.4","0.1.6","0.1.7","0.1.8","0.1.9"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"ruby-twitter-stream","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.16-1","0.1.16-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"ruby-twitter-stream","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.16-3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"ruby-twitter-stream","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.16-3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"ruby-twitter-stream","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.16-3","0.1.16-4"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"ruby-twitter-stream","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.16-4"]}],"products":[{"vendor":"twitter-stream_project","product":"twitter-stream"}],"references":[{"url":"https://github.com/voloko/twitter-stream","tags":["x_refsource_MISC","x_transferred","Product","package","web"]},{"url":"https://securitylab.github.com/advisories/GHSL-2020-097-voloko-twitter-stream","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-24392","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-p6p8-q4pj-f74m"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-24392","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-24392","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-24392","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-24392","description":"In voloko twitter-stream 0.1.10, missing TLS hostname validation allows an attacker to perform a man-in-the-middle attack against users of the library (because eventmachine is misused).","status":"published","published":"2021-02-19T22:42:17Z","modified":"2024-08-04T15:12:08.739Z","updated_at":"2026-11-02T14:35:54.170199Z"}],"euvd":[{"id":"EUVD-2021-0687","description":"In voloko twitter-stream 0.1.10, missing TLS hostname validation allows an attacker to perform a man-in-the-middle attack against users of the library (because eventmachine is misused).","status":"published","published":"2021-02-19T22:42:17Z","modified":"2024-08-04T15:12:08Z","updated_at":"2026-11-03T03:07:19.775117Z"}],"ghsa":[{"id":"GHSA-p6p8-q4pj-f74m","title":"Improper Certificate Validation in twitter-stream","description":"In voloko twitter-stream 0.1.16, missing TLS hostname validation allows an attacker to perform a man-in-the-middle attack against users of the library (because eventmachine is misused).","status":"published","published":"2021-03-29T16:28:42Z","modified":"2023-02-01T05:05:18Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:36:33.613868Z"}],"nvd":[{"id":"CVE-2020-24392","description":"In voloko twitter-stream 0.1.10, missing TLS hostname validation allows an attacker to perform a man-in-the-middle attack against users of the library (because eventmachine is 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hostname validation allows an attacker to perform a man-in-the-middle attack against users of the library (because eventmachine is misused).","status":"published","published":"2021-02-19T23:15:12.407Z","modified":"2026-10-26T12:01:02.884222841Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:33.729655Z"},{"id":"GHSA-p6p8-q4pj-f74m","title":"Improper Certificate Validation in twitter-stream","description":"In voloko twitter-stream 0.1.16, missing TLS hostname validation allows an attacker to perform a man-in-the-middle attack against users of the library (because eventmachine is misused).","status":"published","published":"2021-03-29T16:28:42Z","modified":"2023-11-08T04:03:07.143996Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:46:52.891208Z"},{"id":"UBUNTU-CVE-2020-24392","description":"In voloko twitter-stream 0.1.10, missing TLS hostname validation allows an attacker to perform a man-in-the-middle attack against users of the library (because eventmachine is misused).","status":"published","published":"2021-02-19T23:15:00Z","modified":"2026-01-20T17:14:06.696403Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:23.905183Z"}]}}