Security advisory

{
  "id": "95cf2553d2aa4e810752be1f0a3f3b0430a177e1a14f78e92695f1a69049399d",
  "url": "https://osv.dev/vulnerability/CVE-2021-39223",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-39223",
    "summary": "Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Richdocuments application prior to versions 3.8.6 and 4.2.3 returned verbatim exception messages to the user. This could result in a full path disclosure on shared files. (e.g. an attacker could see that the file `shared.txt` is located within `/files/$username/Myfolder/Mysubfolder/shared.txt`). It is recommended that the Richdocuments application is upgraded to 3.8.6 or 4.2.3. As a workaround, disable the Richdocuments application in the app settings.",
    "evidence": "osv:CVE-2021-39223",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-39223",
      "aliases": [
        "CVE-2021-39223",
        "GHSA-rjcc-4cgj-6v93"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud/richdocuments",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ab63cbd1e3692ce7aae27cfca79d3073fc2b0de5"
                },
                {
                  "introduced": "920fc643722b23fae8972ddc166c144e422ae575"
                },
                {
                  "fixed": "b4b7db423701a49bc98e614c63ed6d85b5e5600d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nextcloud:richdocuments:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.8.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:nextcloud:richdocuments:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "4.2.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.8.5",
            "v4.2.2",
            "v4.2.1",
            "v3.8.4",
            "v3.8.3",
            "v3.8.2",
            "v4.1.2",
            "v4.1.1",
            "v3.8.1",
            "v4.1.0",
            "v3.8.0",
            "untagged-4ba473c037918af19928",
            "v3.7.19",
            "v3.7.18",
            "v3.7.17",
            "v3.7.14",
            "v4.0.4",
            "v4.0.3",
            "v3.7.16",
            "v4.0.2",
            "v4.0.1",
            "v3.7.15",
            "v4.0.0",
            "v3.7.13",
            "v3.7.12",
            "v3.7.11",
            "v3.7.10",
            "v3.7.9",
            "v3.7.8",
            "v3.7.7",
            "v3.7.6",
            "v3.7.5",
            "v3.7.4",
            "v3.7.3",
            "v3.7.2",
            "v3.7.1",
            "v3.7.0",
            "v3.7.0-beta3",
            "v3.7.0-beta2",
            "v3.7.0-beta1",
            "v3.6.0",
            "v3.5.2",
            "v3.5.1",
            "v3.5.0",
            "v3.4.6",
            "v3.4.5",
            "v3.4.4",
            "v3.4.3",
            "v3.4.2",
            "v3.4.0-beta1",
            "3.4.0-beta1",
            "v3.4.1",
            "v3.4.0",
            "v3.3.15",
            "v3.3.13",
            "v3.3.12",
            "v3.3.11",
            "v3.3.10",
            "v3.3.9",
            "v3.3.8",
            "v3.3.7",
            "v3.3.6",
            "v3.3.5",
            "v3.3.4",
            "v3.3.3",
            "v3.3.2",
            "v3.3.1",
            "v3.3.0",
            "v3.2.4",
            "v3.2.3",
            "v3.2.2",
            "v3.2.1",
            "v3.1.1",
            "v3.1.0",
            "v3.0.6",
            "v3.0.5",
            "v3.0.4",
            "v3.0.3",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0-beta3",
            "v3.0.0-beta2",
            "v3.0.0-beta1",
            "2.0.10",
            "2.0.9",
            "2.0.8",
            "2.0.7",
            "2.0.6",
            "2.0.5",
            "2.0.4",
            "2.0.3",
            "2.0.2",
            "2.0.1",
            "2.0.0",
            "1.12.40",
            "1.12.39",
            "1.12.38",
            "1.12.37",
            "1.12.36",
            "1.12.35",
            "1.12.34",
            "1.12.33",
            "1.12.32",
            "1.12.31",
            "1.12.30",
            "1.12.29",
            "1.12.28",
            "1.12.27",
            "1.1.24",
            "1.1.26",
            "1.1.25",
            "1.1.23",
            "1.1.22"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39223.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:53.800625305Z",
      "provider": "osv",
      "references": [
        "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93",
        "https://hackerone.com/reports/1253460",
        "https://github.com/nextcloud/richdocuments/pull/1760"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-39223",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386404,
  "published_at": "2021-10-25T22:15:07.507+00:00"
}