Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail

{
  "id": "d47cd078a2f16e6d1997bfd59f6e335bf129ab1097d939cb7de658ab04c19f49",
  "url": "https://osv.dev/vulnerability/CVE-2026-42396",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail",
    "summary": "Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail",
    "evidence": "osv:CVE-2026-42396",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-42396",
      "aliases": [
        "CVE-2026-42396"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/powerdns/pdns",
              "type": "GIT",
              "events": [
                {
                  "introduced": "677a4e8ea8f791d27d2a75c1f3e6486dff11e22f"
                },
                {
                  "fixed": "6afe8b7c77743f5e2f533df63807fcad8a5ceea5"
                },
                {
                  "introduced": "d1499af06af5dfdff785e9b0595ee692074dba6e"
                },
                {
                  "fixed": "be3e84d15c0b15ab78ebc2e1b04009561f2225e8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.7.0"
                      },
                      {
                        "fixed": "4.9.15"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0.0"
                      },
                      {
                        "fixed": "5.0.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "rec-5.0.3",
            "rec-5.0.1",
            "rec-5.0.0-rc2",
            "rec-5.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42396.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.793072192Z",
      "provider": "osv",
      "references": [
        "https://repo.powerdns.com/",
        "https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42396.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-42396",
        "https://github.com/PowerDNS/pdns"
      ],
      "provider_metadata": {
        "cna_assigner": "OX",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42396.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-42396",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517163,
  "published_at": "2026-05-21T09:25:03.315+00:00"
}