{"action":"Upgrade rack to 1.6.12 or later.","affected":[{"fixed":"1.6.12","introduced":"0"},{"fixed":"2.0.8","introduced":"2.0.0"}],"component":"rack","cve_ids":["CVE-2019-16782"],"ecosystem":"RubyGems","epss":0.03703,"exploited":false,"fixed_versions":["1.6.12","2.0.8"],"ghsa_id":"GHSA-hrqr-hxpp-chr3","id":"tcs_01M5KEKPM8GCBC0DPK5R9MMY13","modified_at":"2026-09-10T03:49:24.917490187Z","published_at":"2019-12-18T19:01:31Z","references":["https://osv.dev/vulnerability/GHSA-hrqr-hxpp-chr3","https://github.com/rack/rack/security/advisories/GHSA-hrqr-hxpp-chr3","https://nvd.nist.gov/vuln/detail/CVE-2019-16782","https://github.com/rack/rack/commit/7fecaee81f59926b6e1913511c90650e76673b38","https://github.com/rack/rack","https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2019-16782.yml","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZXMWILCICQLA2BYSP6I2CRMUG53YBLX","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HZXMWILCICQLA2BYSP6I2CRMUG53YBLX","http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00016.html","http://www.openwall.com/lists/oss-security/2019/12/18/2","http://www.openwall.com/lists/oss-security/2019/12/18/3","http://www.openwall.com/lists/oss-security/2019/12/19/3","http://www.openwall.com/lists/oss-security/2020/04/08/1","http://www.openwall.com/lists/oss-security/2020/04/09/2"],"severity":{"label":"medium","score":6.3},"sources":[{"source":"osv","source_id":"GHSA-hrqr-hxpp-chr3","url":"https://osv.dev/vulnerability/GHSA-hrqr-hxpp-chr3"}],"summary":"Possible Information Leak / Session Hijack Vulnerability in Rack"}