{"id":"DEBIAN-CVE-2026-120636","details":"CGI versions before 5.00 for Perl allow open redirects and script injection via URLs built from REQUEST_URI in url and start_form.  url(-absolute=\u003e1), url(-relative=\u003e1) and the default start_form action are built from the client-supplied REQUEST_URI without validation. The result can be protocol-relative (//evil.example), absolute-form (http://evil.example/) or contain backslashes, and url(-relative=\u003e1) can return a javascript: URL. Links and form posts built from these URLs can go to another host.","modified":"2026-11-04T08:00:09.697974955Z","published":"2026-11-04T00:17:24.867Z","upstream":["CVE-2026-120636"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-120636"}],"affected":[{"package":{"name":"libcgi-pm-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libcgi-pm-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.55-1","4.57-1","4.59-1","4.60-1","4.61-1","4.62-1","4.63-1","4.64-1","4.65-1","4.66-1","4.67-1","4.68-1","4.70-1","4.71-1","4.72-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120636.json"}},{"package":{"name":"libcgi-pm-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libcgi-pm-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.68-1","4.70-1","4.71-1","4.72-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120636.json"}},{"package":{"name":"libcgi-pm-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libcgi-pm-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.68-1","4.70-1","4.71-1","4.72-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120636.json"}}],"schema_version":"1.9.2"}