Security advisory

{
  "id": "ca6b6acd69e724952a2a4546b25c33206bbe3a357f33422534860e47a85413d8",
  "url": "https://osv.dev/vulnerability/CVE-2020-8296",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-8296",
    "summary": "Nextcloud Server prior to 20.0.0 stores passwords in a recoverable format even when external storage is not configured.",
    "evidence": "osv:CVE-2020-8296",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-8296",
      "aliases": [
        "CVE-2020-8296"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud/server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "615b994816710a595243d704c9be445f736b4b41"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "20.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v20.0.0RC2",
            "v20.0.0RC1",
            "v20.0.0beta4",
            "v20.0.0beta3",
            "v20.0.0beta2",
            "v20.0.0beta1",
            "v19.0.0RC2",
            "v19.0.0RC1",
            "v19.0.0beta7",
            "v19.0.0beta6",
            "v19.0.0beta5",
            "v19.0.0beta4",
            "v19.0.0beta3",
            "v19.0.0beta2",
            "v19.0.0beta1",
            "v18.0.0RC1",
            "v18.0.0beta4",
            "v18.0.0beta3",
            "v18.0.0beta2",
            "v18.0.0beta1",
            "v17.0.0beta4",
            "v17.0.0beta3",
            "v17.0.0beta2",
            "v17.0.0beta1",
            "v16.0.0RC1",
            "v16.0.0beta3",
            "v16.0.0beta2",
            "v16.0.0beta1",
            "v16.0.0alpha1",
            "v15.0.0RC1",
            "v15.0.0beta2",
            "v15.0.0beta1",
            "v14.0.0RC2",
            "v14.0.0RC1",
            "v14.0.0beta4",
            "v14.0.0beta3",
            "v14.0.0beta2",
            "v14.0.0beta1",
            "v13.0.0RC1",
            "v13.0.0beta4",
            "v13.0.0beta3",
            "v13.0.0beta2",
            "v13.0.0beta1",
            "v12.0.0beta4",
            "v12.0.0beta3",
            "v12.0.0beta2",
            "v12.0.0beta1",
            "v11.0.0",
            "v11.0RC2",
            "v9.1.0beta1",
            "v9.0.0beta2",
            "v9.0beta1",
            "v8.2RC1",
            "v8.2beta1",
            "v8.1RC2",
            "v8.1.0beta2",
            "v8.1.0beta1",
            "v8.1.0alpha2",
            "v8.1.0alpha1",
            "v8.0.0",
            "v8.0.0RC2",
            "v8.0.0RC1",
            "v8.0.0beta2",
            "v8.0.0beta1",
            "v8.0.0alpha2",
            "v8.0.0alpha1",
            "v7.0.0beta1",
            "v7.0.0alpha2",
            "v6.0.0RC2",
            "v6.0.0RC1",
            "v6.0.0beta5",
            "v6.0.0beta4",
            "v6.0.0beta3",
            "v6.0.0beta2",
            "v6.0.0alpha2",
            "v5.0.0",
            "v5.0.0RC3",
            "v5.0.0RC2",
            "v5.0.0RC1",
            "v5.0.0beta2",
            "v5.0.0beta1",
            "v5.0.0alpha1",
            "v4.5.0",
            "v4.5.0RC3",
            "v4.5.0RC2",
            "v4.5.0RC1",
            "v4.5.0beta4",
            "v4.5.0beta3",
            "v4.0.6",
            "v4.0.5",
            "v4.0.4",
            "v4.0.1",
            "v4.0.0",
            "v4.0.0RC2",
            "v4.0.0RC",
            "v4.0.0beta",
            "v3.0",
            "v1.0.0beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8296.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:25.219743759Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/",
        "https://nextcloud.com/security/advisory/?id=NC-SA-2021-006",
        "https://hackerone.com/reports/867164",
        "https://github.com/nextcloud/server/pull/21037",
        "https://github.com/nextcloud/server/issues/17439"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "34"
                  },
                  {
                    "last_affected": "34"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-8296",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385332,
  "published_at": "2021-03-03T18:15:13.847+00:00"
}