{"api_version":"1","generated_at":"2026-05-11T11:02:57+00:00","cve":"CVE-2026-45191","urls":{"html":"https://cve.report/CVE-2026-45191","api":"https://cve.report/api/cve/CVE-2026-45191.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45191","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45191"},"summary":{"title":"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","description":"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.\n\nMask forms like \"/00\" and \"/01\" pass validation and parse to the same prefix as their unpadded value.\n\nSee also CVE-2026-45190.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-05-10 21:16:29","updated_at":"2026-05-10 21:16:29"},"problem_types":["CWE-1289","CWE-1289 CWE-1289 Improper Validation of 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CVE-2026-45190."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1289","description":"CWE-1289 Improper Validation of Unsafe Equivalence in Input","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-10T20:15:53.897Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["patch"],"url":"https://github.com/stigtsp/Net-CIDR-Lite/commit/24e2c439ec405e5256024b9acefd4f7008c5ed0c.patch"},{"tags":["release-notes"],"url":"https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes"},{"tags":["related"],"url":"https://www.cve.org/CVERecord?id=CVE-2026-45190"}],"solutions":[{"lang":"en","value":"Upgrade to version 0.24 or newer, or apply the patch provided."}],"source":{"discovery":"UNKNOWN"},"timeline":[{"lang":"en","time":"2026-05-10T00:00:00.000Z","value":"Vulnerability found"},{"lang":"en","time":"2026-05-10T00:00:00.000Z","value":"Net-CIDR-Lite version 0.24 released"}],"title":"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","x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-45191","datePublished":"2026-05-10T20:15:53.897Z","dateReserved":"2026-05-10T16:36:05.708Z","dateUpdated":"2026-05-10T20:15:53.897Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-10 21:16:29","lastModifiedDate":"2026-05-10 21:16:29","problem_types":["CWE-1289","CWE-1289 CWE-1289 Improper Validation of Unsafe Equivalence in Input"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45191","Ordinal":"1","Title":"Net::CIDR::Lite versions before 0.24 for Perl does not properly ","CVE":"CVE-2026-45191","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45191","Ordinal":"1","NoteData":"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.\n\nMask forms like \"/00\" and \"/01\" pass validation and parse to the same prefix as their unpadded value.\n\nSee also CVE-2026-45190.","Type":"Description","Title":"Net::CIDR::Lite versions before 0.24 for Perl does not properly "}]}}}