{"id":"CVE-2026-49941","summary":"Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses","details":"Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses.\n\nThe 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.\n\nIf the argument was not a well-formed IP address, then this would lead to indefinite recursion.\n\nAn attacker could use this to cause a denial of service.","modified":"2026-06-18T03:57:14.110249500Z","published":"2026-06-04T16:07:20.739Z","related":["openSUSE-SU-2026:10951-1"],"database_specific":{"cna_assigner":"CPANSec","cwe_ids":["CWE-1287","CWE-674"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49941.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/06/04/11"},{"type":"WEB","url":"https://cpan.org/modules"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49941.json"},{"type":"ADVISORY","url":"https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49941"},{"type":"PACKAGE","url":"https://github.com/robrwo/perl-Net-CIDR-Set"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/robrwo/perl-net-cidr-set","events":[{"introduced":"0"},{"fixed":"c61d2f359f6b3a04af11bb64ee4c6d8d1c04504d"}],"database_specific":{"cpe":"cpe:2.3:a:rrwo:net\\:\\:cidr\\:\\:set:*:*:*:*:*:perl:*:*","source":["AFFECTED_FIELD","CPE_RANGE"],"extracted_events":[{"introduced":"0"},{"last_affected":"0.20"},{"introduced":"0"},{"fixed":"0.21"}]}}],"versions":["0.20","0.19","0.18","0.17","0.16","v0.15","v0.14","v0.13"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/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"}]}