{
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        "providerMetadata": {
          "dateUpdated": "2026-09-07T20:07:31.385Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/09/07/1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "Net::IP::LPM"
          ],
          "packageName": "Net-IP-LPM",
          "packageURL": "pkg:cpan/Net-IP-LPM",
          "programFiles": [
            "lib/Net/IP/LPM.pm",
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            "lpm_lib.c",
            "lpm_lib.h"
          ],
          "programRoutines": [
            {
              "name": "Net::IP::LPM::add"
            },
            {
              "name": "lpm_add_raw"
            }
          ],
          "repo": "https://github.com/robrwo/perl-Net-IP-LPM",
          "versions": [
            {
              "lessThan": "1.12",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Net::IP::LPM versions before 1.12 for Perl accept malformed prefix lengths.\n\nNon-numeric and non-ASCII prefix lengths are accepted and treated as 0. Integers over 31 bits are silently truncated.  A single malformed mask will poison the lookup table.\n\nThe result is that the lookup will silently succeed for every address. An allow-list will allow every address, and a deny-list will block every address."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1287",
              "description": "CWE-1287 Improper Validation of Specified Type of Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-07T18:25:37.140Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/robrwo/perl-Net-IP-LPM/commit/814f8baa85537827db8c3b3d251e48db7aca318f.patch"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/RRWO/Net-IP-LPM-1.12/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to Net::IP::LPM version 1.12 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Net::IP::LPM versions before 1.12 for Perl accept malformed prefix lengths",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-86287",
    "datePublished": "2026-09-07T18:25:37.140Z",
    "dateReserved": "2026-09-06T14:31:43.537Z",
    "dateUpdated": "2026-09-07T20:07:31.385Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-86287",
      "date": "2026-09-08",
      "epss": "0.0017",
      "percentile": "0.06555"
    },
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