{"id":"USN-7709-1","summary":"ruby-webrick vulnerability","details":"It was discovered that WEBrick incorrectly parsed HTTP headers. In\nconfigurations where WEBrick is placed behind an HTTP proxy, a remote\nattacker could possibly use this issue to perform an HTTP Request Smuggling\nattack.","modified":"2026-02-10T04:49:48Z","published":"2025-08-21T13:53:54Z","related":["UBUNTU-CVE-2025-6442"],"upstream":["CVE-2025-6442","UBUNTU-CVE-2025-6442"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7709-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-6442"}],"affected":[{"package":{"name":"ruby-webrick","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ruby-webrick@1.7.0-3ubuntu0.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.0-3ubuntu0.2"}]}],"versions":["1.7.0-1","1.7.0-2","1.7.0-3","1.7.0-3ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-webrick","binary_version":"1.7.0-3ubuntu0.2"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-6442"}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7709-1.json"}},{"package":{"name":"ruby-webrick","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/ruby-webrick@1.8.1-1ubuntu0.2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.1-1ubuntu0.2"}]}],"versions":["1.8.1-1","1.8.1-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-webrick","binary_version":"1.8.1-1ubuntu0.2"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-6442"}],"ecosystem":"Ubuntu:24.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7709-1.json"}}],"schema_version":"1.7.3"}