{"id":"UBUNTU-CVE-2026-49940","details":"Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks. Unicode digits such as the Arabic-Indic One (U+0661) were accepted but not properly parsed as numbers.  This could allow network masks to accept larger networks.","modified":"2026-06-12T09:04:21.008571204Z","published":"2026-06-04T17:16:00Z","upstream":["CVE-2026-49940"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-49940"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-49940"},{"type":"REPORT","url":"https://github.com/robrwo/perl-Net-CIDR-Set/commit/875010b4217afe9a61cee519f0e0250847ecf699"}],"affected":[{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.13-2","binary_name":"libnet-cidr-set-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49940.json"}},{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libnet-cidr-set-perl","binary_version":"0.13-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49940.json"}},{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13-4","0.13-5"],"ecosystem_specific":{"binaries":[{"binary_name":"libnet-cidr-set-perl","binary_version":"0.13-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49940.json"}},{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13-5","0.15-1","0.19-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.19-1","binary_name":"libnet-cidr-set-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49940.json"}},{"package":{"name":"libnet-cidr-set-perl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libnet-cidr-set-perl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.19-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.19-1","binary_name":"libnet-cidr-set-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49940.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:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}