CVE-2026-49941

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{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Net-CIDR-Set", "product": "Net::CIDR::Set", "programRoutines": [{"name": "Net::CIDR::Set::IPv4::_encode"}, {"name": "Net::CIDR::Set::IPv6::_encode"}], "repo": "https://github.com/robrwo/perl-Net-CIDR-Set", "vendor": "RRWO", "versions": [{"lessThanOrEqual": "0.20", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rrwo:net\\:\\:cidr\\:\\:set:*:*:*:*:*:perl:*:*", "matchCriteriaId": "24C7BD24-8729-408F-BD1D-F8F0608DFE50", "versionEndExcluding": "0.21", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Las versiones de Net::CIDR::Set hasta la 0.20 para Perl no validaban las direcciones IP.\n\nEl m\u00e9todo add llamaba al m\u00e9todo _encode para analizar direcciones. Si las direcciones no parec\u00edan m\u00e1scaras de red o rangos de red, entonces se asum\u00eda que eran direcciones IP \u00fanicas y se pasaban de vuelta a s\u00ed mismo como una m\u00e1scara de red de 32 o 128 bits.\n\nSi el argumento no era una direcci\u00f3n IP bien formada, entonces esto conducir\u00eda a una recursi\u00f3n indefinida.\n\nUn atacante podr\u00eda usar esto para causar una denegaci\u00f3n de servicio."}], "id": "CVE-2026-49941", "lastModified": "2026-07-22T20:10:00.127", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49941", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-04T17:51:29.220717Z", "version": "2.0.3"}}]}, "published": "2026-06-04T17:16:33.173", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Release Notes"], "url": "https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/06/04/11"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}, {"lang": "en", "value": "CWE-1287"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.20]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Net::CIDR::Set", "source": "cna", "vendor": "RRWO"}, "product": "net::cidr::set", "vendor": "rrwo"}], "created": "2026-06-04T18:00:13.435387+00:00", "updated": "2026-06-05T10:07:30.020357+00:00", "vendors": ["rrwo", "rrwo$PRODUCT$net::cidr::set"]}