{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00005:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00006:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00007:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00008:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00009:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00010:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00011:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00012:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00013:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00014:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00015:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00016:*:*:*:*:*:*",
              "cpe:2.3:a:apache:lucene.net:4.8.0:beta00017:*:*:*:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "4.8.0-beta00005"
              },
              {
                "last_affected": "4.8.0-beta00005"
              },
              {
                "introduced": "4.8.0-beta00006"
              },
              {
                "last_affected": "4.8.0-beta00006"
              },
              {
                "introduced": "4.8.0-beta00007"
              },
              {
                "last_affected": "4.8.0-beta00007"
              },
              {
                "introduced": "4.8.0-beta00008"
              },
              {
                "last_affected": "4.8.0-beta00008"
              },
              {
                "introduced": "4.8.0-beta00009"
              },
              {
                "last_affected": "4.8.0-beta00009"
              },
              {
                "introduced": "4.8.0-beta00010"
              },
              {
                "last_affected": "4.8.0-beta00010"
              },
              {
                "introduced": "4.8.0-beta00011"
              },
              {
                "last_affected": "4.8.0-beta00011"
              },
              {
                "introduced": "4.8.0-beta00012"
              },
              {
                "last_affected": "4.8.0-beta00012"
              },
              {
                "introduced": "4.8.0-beta00013"
              },
              {
                "last_affected": "4.8.0-beta00013"
              },
              {
                "introduced": "4.8.0-beta00014"
              },
              {
                "last_affected": "4.8.0-beta00014"
              },
              {
                "introduced": "4.8.0-beta00015"
              },
              {
                "last_affected": "4.8.0-beta00015"
              },
              {
                "introduced": "4.8.0-beta00016"
              },
              {
                "last_affected": "4.8.0-beta00016"
              },
              {
                "introduced": "4.8.0-beta00017"
              },
              {
                "last_affected": "4.8.0-beta00017"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "ffbe9c3f90297dfbae11c8a3b1dad475821f46b3"
            },
            {
              "last_affected": "5784b18a4c11c847bc2c962b7c4cd6d072b5b2a8"
            }
          ],
          "repo": "https://github.com/apache/lucenenet",
          "type": "GIT"
        }
      ],
      "versions": [
        "4.8.0-beta00005",
        "4.8.0-beta00006",
        "4.8.0-beta00007",
        "4.8.0-beta00008",
        "4.8.0-beta00009",
        "4.8.0-beta00010",
        "4.8.0-beta00011",
        "4.8.0-beta00012",
        "4.8.0-beta00013",
        "4.8.0-beta00014",
        "4.8.0-beta00015",
        "4.8.0-beta00016",
        "4.8.0-beta00017"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47897.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "4.8.0-beta00005"
          },
          {
            "fixed": "4.8.0-beta00018"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "4.8.0-beta00005"
          },
          {
            "fixed": "4.8.0-beta00018"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Lucene.Net (Lucene.Net.Replicator library).\n\nThis issue affects Apache Lucene.Net.Replicator: from 4.8.0-beta00005 before 4.8.0-beta00018.\n\nUsers are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.",
  "id": "CVE-2026-47897",
  "modified": "2026-07-15T01:48:56.705800882Z",
  "published": "2026-07-03T07:48:11.367Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/03/2"
    },
    {
      "type": "WEB",
      "url": "https://www.nuget.org"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47897.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/on1j3zmvgtf8n9fw78z3lyf6dn94p5zc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47897"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/AU:Y/RE:L",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Apache Lucene.Net: Arbitrary file write from malicious server to Lucene.Net.Replicator client"
}