{"id":"DEBIAN-CVE-2026-49941","details":"Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses.  The add method called the _encode method to parse addresses. If the addresses did not look like netmasks or network ranges, then they were assumed to single IP addresses and passed back to itself as a 32-bit or 128-bit netmask.  If the argument was not a well-formed IP address, then this would lead to indefinite recursion.  An attacker could use this to cause a denial of service.","modified":"2026-06-15T19:06:30.315359661Z","published":"2026-06-04T17:16:33.173Z","upstream":["CVE-2026-49941"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-49941"}],"affected":[{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Debian:11","purl":"pkg:deb/debian/libnet-cidr-set-perl?arch=source&distro=bullseye"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13-3","0.13-4","0.13-5","0.15-1","0.19-1","0.20-1","0.21-1","0.22-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49941.json"}},{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/libnet-cidr-set-perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13-4","0.13-5","0.15-1","0.19-1","0.20-1","0.21-1","0.22-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49941.json"}},{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/libnet-cidr-set-perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.15-1","0.19-1","0.20-1","0.21-1","0.22-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49941.json"}},{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/libnet-cidr-set-perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.21-1"}]}],"versions":["0.15-1","0.19-1","0.20-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49941.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}