{"id":"DEBIAN-CVE-2015-7519","details":"agent/Core/Controller/SendRequest.cpp in Phusion Passenger before 4.0.60 and 5.0.x before 5.0.22, when used in Apache integration mode or in standalone mode without a filtering proxy, allows remote attackers to spoof headers passed to applications by using an _ (underscore) character instead of a - (dash) character in an HTTP header, as demonstrated by an X_User header.","modified":"2026-09-09T07:01:14.212471928Z","published":"2016-01-08T19:59:05.600Z","upstream":["CVE-2015-7519"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2015-7519"}],"affected":[{"package":{"name":"passenger","ecosystem":"Debian:12","purl":"pkg:deb/debian/passenger?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.22-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2015-7519.json"}},{"package":{"name":"passenger","ecosystem":"Debian:13","purl":"pkg:deb/debian/passenger?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.22-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2015-7519.json"}},{"package":{"name":"passenger","ecosystem":"Debian:14","purl":"pkg:deb/debian/passenger?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.22-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2015-7519.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}