Security advisory

{
  "id": "f1b8c9b1e5e310b529484e33ec9b79fce26da26796a05b9c0cd06109899453ba",
  "url": "https://osv.dev/vulnerability/CVE-2021-37628",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-37628",
    "summary": "Nextcloud Richdocuments is an open source collaborative office suite. In affected versions the File Drop features (\"Upload Only\" public link shares in Nextcloud) can be bypassed using the Nextcloud Richdocuments app. An attacker was able to read arbitrary files in such a share. It is recommended that the Nextcloud Richdocuments is upgraded to 3.8.4 or 4.2.1. If upgrading is not possible then it is recommended to disable the Richdocuments application.",
    "evidence": "osv:CVE-2021-37628",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-37628",
      "aliases": [
        "CVE-2021-37628",
        "GHSA-pxhh-954f-8w7w"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud/richdocuments",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "79932dda715fc88baebc8693dc6c5e84f98066c8"
                },
                {
                  "introduced": "920fc643722b23fae8972ddc166c144e422ae575"
                },
                {
                  "fixed": "1c49cb0a241ad156847ad220cc0c6a686c5244d7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nextcloud:richdocuments:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.8.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:nextcloud:richdocuments:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "4.2.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "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-2021-37628.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:49.711718213Z",
      "provider": "osv",
      "references": [
        "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pxhh-954f-8w7w",
        "https://hackerone.com/reports/1253403",
        "https://github.com/nextcloud/richdocuments/pull/1664"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-37628",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386229,
  "published_at": "2021-09-07T21:15:08.73+00:00"
}