Security advisory

{
  "id": "57d57b2d23387e85868276b23fe9aa8e7d6472ad870aeddf248d7463769e5b87",
  "url": "https://osv.dev/vulnerability/CVE-2021-38295",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-38295",
    "summary": "In Apache CouchDB, a malicious user with permission to create documents in a database is able to attach a HTML attachment to a document. If a CouchDB admin opens that attachment in a browser, e.g. via the CouchDB admin interface Fauxton, any JavaScript code embedded in that HTML attachment will be executed within the security context of that admin. A similar route is available with the already deprecated _show and _list functionality. This privilege escalation vulnerability allows an attacker to add or remove data in any database or make configuration changes. This issue affected Apache CouchDB prior to 3.1.2",
    "evidence": "osv:CVE-2021-38295",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-38295",
      "aliases": [
        "BIT-couchdb-2021-38295",
        "CVE-2021-38295"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/couchdb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "572b68e724ddb53d0bd04f56b3e0a3ff0d05cdf1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:couchdb:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.1.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.1.1-RC2",
            "3.1.1",
            "3.1.1-RC1",
            "3.1.0-RC2",
            "3.1.0",
            "3.1.0-RC1",
            "3.0.0-RC1",
            "2.3.1-last",
            "2.3.0-RC1",
            "2.3.0",
            "2.2.0-RC1",
            "2.1.0-RC1",
            "2.1.0",
            "2.0.0-RC4",
            "2.0.0-RC3",
            "2.0.0-RC1",
            "fauxton"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38295.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:35.454355766Z",
      "provider": "osv",
      "references": [
        "https://docs.couchdb.org/en/stable/cve/2021-38295.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-38295",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433736,
  "published_at": "2021-10-14T20:15:09.017+00:00"
}