Apache Roller: XML external entity processing in OPML bookmark import

{
  "id": "e16e80e87366dffc6ac979edfeb172cb335e303924b77c37dbf14585fc405e06",
  "url": "https://osv.dev/vulnerability/CVE-2026-82386",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Apache Roller: XML external entity processing in OPML bookmark import",
    "summary": "Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a weblog administrator to read files readable by the Roller process and reach internal network addresses by importing a crafted OPML document, because the bookmark import parser does not disable external entity resolution. No non-default configuration is required; the import is reached through the administrator bookmark-import action. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which uses a hardened parser that disables external entities and document type declarations.",
    "evidence": "osv:CVE-2026-82386",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-82386",
      "aliases": [
        "CVE-2026-82386"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/roller",
              "type": "GIT",
              "events": [
                {
                  "introduced": "395cfa30a7b274f8540424d11404c3e7433243f8"
                },
                {
                  "last_affected": "395cfa30a7b274f8540424d11404c3e7433243f8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "6.1.5"
                      },
                      {
                        "last_affected": "6.1.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  }
                ]
              }
            }
          ],
          "versions": [
            "6.1.5",
            "roller-6.1.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82386.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.309549388Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82386.json",
        "https://lists.apache.org/thread/mrtstv8odj7l9mcrto445lftrcpw0sxl",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-82386",
        "https://github.com/apache/roller/pull/173"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-611"
        ],
        "cna_assigner": "apache",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82386.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-82386",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504804,
  "published_at": "2026-09-28T07:43:31.795+00:00"
}