{"id":"CVE-2018-1000883","aliases":["GHSA-9h73-w7ch-rh73"],"url":"https://o3.security/vulnerability/CVE-2018-1000883","summary":"Header Injection","details":"Elixir Plug Plug version All contains a Header Injection vulnerability in Connection that can result in Given a cookie value, Headers can be added. This attack appear to be exploitable via Crafting a value to be sent as a cookie. This vulnerability appears to have been fixed in >= 1.3.5 or ~> 1.2.5 or ~> 1.1.9 or ~> 1.0.6.","published":"2018-12-20T21:29:00.290Z","modified":"2026-08-07T11:48:25.560140830Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Hex","name":"plug","fixedVersion":"1.0.6"},{"ecosystem":"Hex","name":"plug","fixedVersion":"1.1.9"},{"ecosystem":"Hex","name":"plug","fixedVersion":"1.2.5"},{"ecosystem":"Hex","name":"plug","fixedVersion":"1.3.5"}],"fix":{"url":"https://github.com/elixir-plug/plug/commit/8857f8ab4acf9b9c22e80480dae2636692f5f573","label":"elixir-plug/plug@8857f8a"},"references":[{"type":"ADVISORY","url":"https://github.com/dependabot/elixir-security-advisories/blob/master/packages/plug/2017-04-17.yml"},{"type":"FIX","url":"https://github.com/elixir-plug/plug/commit/8857f8ab4acf9b9c22e80480dae2636692f5f573"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:48:25.560140830Z"}}