{"id":"DEBIAN-CVE-2026-45191","details":"Net::CIDR::Lite versions before 0.24 for Perl does not properly consider extraneous zero characters in CIDR mask values, which may allow IP ACL bypass.  Mask forms like \"/00\" and \"/01\" pass validation and parse to the same prefix as their unpadded value.  See also CVE-2026-45190.","modified":"2026-09-14T17:03:13.903888076Z","published":"2026-05-10T21:16:29.380Z","upstream":["CVE-2026-45191"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-45191"}],"affected":[{"package":{"name":"libnet-cidr-lite-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libnet-cidr-lite-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.22-3~deb12u2"}]}],"versions":["0.22-2","0.22-3~deb12u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45191.json"}},{"package":{"name":"libnet-cidr-lite-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libnet-cidr-lite-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.22-3~deb13u2"}]}],"versions":["0.22-2","0.22-3~deb12u1","0.22-3~deb12u2","0.22-3~deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45191.json"}},{"package":{"name":"libnet-cidr-lite-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libnet-cidr-lite-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.24-1"}]}],"versions":["0.22-2","0.22-3","0.22-3~deb12u1","0.22-3~deb12u2","0.22-3~deb13u1","0.22-3~deb13u2","0.23-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45191.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L"}]}