Security advisory

{
  "id": "77c09eb4dd66bc7729123f1ca5f82056b8e0453d9796f9f909b2d8cef7fe9a40",
  "url": "https://osv.dev/vulnerability/CVE-2021-28544",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-28544",
    "summary": "Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal 'copyfrom' paths that should be hidden according to configured path-based authorization (authz) rules. When a node has been copied from a protected location, users with access to the copy can see the 'copyfrom' path of the original. This also reveals the fact that the node was copied. Only the 'copyfrom' path is revealed; not its contents. Both httpd and svnserve servers are vulnerable.",
    "evidence": "osv:CVE-2021-28544",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-28544",
      "aliases": [
        "BIT-subversion-2021-28544",
        "CVE-2021-28544"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/subversion",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2872254e96ee2eb1dbb6f8bc44134e08380bb20b"
                },
                {
                  "last_affected": "209825a473d8fe106e52c6082d1c363f06109d2b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.10.0"
                      },
                      {
                        "last_affected": "1.14.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28544.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:00.622478381Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZ4ARNGLMGYBKYDX2B7DRBNMF6EH3A6R/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJPMCWCGWBN3QWCDVILWQWPC75RR67LT/",
        "https://support.apple.com/kb/HT213345",
        "https://www.debian.org/security/2022/dsa-5119",
        "https://subversion.apache.org/security/CVE-2021-28544-advisory.txt"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "apple:macos",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "12.0"
                  },
                  {
                    "fixed": "12.5"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  },
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "35"
                  },
                  {
                    "last_affected": "35"
                  },
                  {
                    "introduced": "36"
                  },
                  {
                    "last_affected": "36"
                  },
                  {
                    "introduced": "35"
                  },
                  {
                    "last_affected": "35"
                  },
                  {
                    "introduced": "36"
                  },
                  {
                    "last_affected": "36"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-28544",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 439593,
  "published_at": "2022-04-12T18:15:08.25+00:00"
}