{"id":"BIT-ruby-2020-25613","details":"An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.","aliases":["BIT-ruby-min-2020-25613","CVE-2020-25613","GHSA-gwfg-cqmg-cf8f"],"modified":"2025-04-03T14:40:37.652Z","published":"2024-03-06T11:06:01.180Z","database_specific":{"cpes":["cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7"},{"type":"WEB","url":"https://hackerone.com/reports/965267"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV/"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202401-27"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20210115-0008/"},{"type":"WEB","url":"https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25613"}],"affected":[{"package":{"name":"ruby","ecosystem":"Bitnami","purl":"pkg:bitnami/ruby"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.5.9"},{"introduced":"2.6.0"},{"fixed":"2.6.7"},{"introduced":"2.7.0"},{"fixed":"2.7.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/ruby/BIT-ruby-2020-25613.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}],"schema_version":"1.7.3"}