{"id":"GHSA-m27g-v28p-f9fx","summary":"OmniAuth: Host Header Injection Vulnerability","details":"### Impact\nHost header injection risk when using Omniauth with a web framework that does not verify incoming host headers. An example of a framework that provides host header validation is modern Rails when [configured appropriately](https://guides.rubyonrails.org/v6.1.1/configuring.html#configuring-middleware)\n\n### Patches\n2.2.0\n\n### Workarounds\n_Set the `full_host` config in the Omniauth config_","aliases":["CVE-2026-63183"],"modified":"2026-11-09T22:00:06.898354678Z","published":"2026-11-09T21:49:04Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-11-09T21:49:04Z","nvd_published_at":"2026-11-04T19:17:40Z","cwe_ids":["CWE-346"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/omniauth/omniauth/security/advisories/GHSA-m27g-v28p-f9fx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63183"},{"type":"WEB","url":"https://github.com/omniauth/omniauth/commit/943b44faea242f063fa9230254fe7d60cfcc9c90"},{"type":"PACKAGE","url":"https://github.com/omniauth/omniauth"}],"affected":[{"package":{"name":"omniauth","ecosystem":"RubyGems","purl":"pkg:gem/omniauth"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.0"}]}],"versions":["0.0.1","0.0.3","0.0.4","0.0.5","0.1.0","0.1.1","0.1.2","0.1.3","0.1.4","0.1.5","0.1.6","0.2.0","0.2.0.beta1","0.2.0.beta2","0.2.0.beta3","0.2.0.beta4","0.2.0.beta5","0.2.1","0.2.2","0.2.3","0.2.4","0.2.5","0.2.6","0.3.0","0.3.0.rc3","0.3.2","1.0.0","1.0.0.beta1","1.0.0.pr1","1.0.0.pr2","1.0.0.rc1","1.0.0.rc2","1.0.1","1.0.2","1.0.3","1.1.0","1.1.1","1.1.2","1.1.3","1.1.4","1.2.1","1.2.2","1.3.0","1.3.1","1.3.2","1.4.0","1.4.1","1.4.2","1.4.3","1.5.0","1.6.0","1.6.1","1.7.0","1.7.1","1.8.0","1.8.1","1.9.0","1.9.1","1.9.2","2.0.0","2.0.0.pre.rc1","2.0.1","2.0.2","2.0.3","2.0.4","2.1.0","2.1.1","2.1.2","2.1.3","2.1.4"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/11/GHSA-m27g-v28p-f9fx/GHSA-m27g-v28p-f9fx.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N"}]}