{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45191", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-05-10T16:36:05.708Z", "datePublished": "2026-05-10T20:15:53.897Z", "dateUpdated": "2026-05-10T20:15:53.897Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Net-CIDR-Lite", "product": "Net::CIDR::Lite", "programFiles": ["Lite.pm"], "programRoutines": [{"name": "Net::CIDR::Lite::add"}], "repo": "https://github.com/stigtsp/Net-CIDR-Lite", "vendor": "STIGTSP", "versions": [{"lessThan": "0.24", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-1289", "description": "CWE-1289 Improper Validation of Unsafe Equivalence in Input", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-05-10T20:15:53.897Z"}, "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"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-45191", "lastModified": "2026-05-10T21:16:29.380", "metrics": {}, "published": "2026-05-10T21:16:29.380", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/stigtsp/Net-CIDR-Lite/commit/24e2c439ec405e5256024b9acefd4f7008c5ed0c.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://www.cve.org/CVERecord?id=CVE-2026-45190"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1289"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.24)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Net::CIDR::Lite", "source": "cna", "vendor": "STIGTSP"}, "product": "net::cidr::lite", "vendor": "stigtsp"}], "created": "2026-05-10T21:23:20.631263+00:00", "updated": "2026-05-10T21:30:20.899988+00:00", "vendors": ["stigtsp", "stigtsp$PRODUCT$net::cidr::lite"]}