{"id":"DEBIAN-CVE-2026-7017","details":"HTTP::Tiny versions before 0.095 for Perl forward credential headers to cross-origin redirect targets.  When the server returns a 3xx redirect, `_maybe_redirect` follows the `Location:` header and `_prepare_headers_and_cb` re-merges the caller's `headers` argument into the new request, without checking whether the redirect target shares an origin with the original URL. Caller-supplied `Authorization`, `Cookie` and `Proxy-Authorization` headers are therefore re-sent to whatever host the redirect names, across scheme, host or port boundaries, and including `https` to `http` downgrades that expose them in plaintext on the wire.  The HTTP::Tiny POD note that \"Authorization headers will not be included in a redirected request\" applied only to the URL-userinfo Basic-auth path, not to headers passed explicitly by the caller.","modified":"2026-09-12T10:00:28.783048223Z","published":"2026-07-07T19:16:55.530Z","upstream":["CVE-2026-7017"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-7017"}],"affected":[{"package":{"name":"libhttp-tiny-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libhttp-tiny-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.082-2","0.088-1","0.090-1","0.092-1","0.092-2","0.092-3","0.096-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7017.json"}},{"package":{"name":"libhttp-tiny-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libhttp-tiny-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.090-1+deb13u1"}]}],"versions":["0.090-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7017.json"}},{"package":{"name":"libhttp-tiny-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libhttp-tiny-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.096-1"}]}],"versions":["0.090-1","0.092-1","0.092-2","0.092-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7017.json"}},{"package":{"name":"perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.36.0-10","5.36.0-7","5.36.0-7+deb12u1","5.36.0-7+deb12u2","5.36.0-7+deb12u3","5.36.0-8","5.36.0-9","5.38.0-1","5.38.0-2","5.38.0~rc2-1","5.38.2-1","5.38.2-2","5.38.2-3","5.38.2-3.1","5.38.2-3.2","5.38.2-3.2+hurd.1","5.38.2-4","5.38.2-5","5.40.0-1","5.40.0-2","5.40.0-3","5.40.0-4","5.40.0-5","5.40.0-6","5.40.0-7","5.40.0-8","5.40.0~rc1-1","5.40.1-1","5.40.1-2","5.40.1-3","5.40.1-4","5.40.1-5","5.40.1-6","5.40.1-7","5.40.1-8","5.42.0-1","5.42.0-2","5.42.0-3","5.42.2-1","5.42.2-2","5.42.2-3","5.42.3-1","5.44.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7017.json"}},{"package":{"name":"perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.40.1-6+deb13u1"}]}],"versions":["5.40.1-6"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7017.json"}},{"package":{"name":"perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.42.3-1"}]}],"versions":["5.40.1-6","5.40.1-7","5.40.1-8","5.42.0-1","5.42.0-2","5.42.0-3","5.42.2-1","5.42.2-2","5.42.2-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7017.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N"}]}