{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.3.5"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6f35776c9188f130ab044ce557015d51aaa83500"
            },
            {
              "fixed": "23fca6dbfc50f5c94ef09aa249807251659a7e70"
            }
          ],
          "repo": "https://github.com/mar10/wsgidav",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-p6gw-4frg-j7jw"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-89"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55509.json"
  },
  "details": "WsgiDAV is a generic and extendable WebDAV server based on WSGI. Prior to 4.3.5, the sample MySQLBrowserProvider in wsgidav/samples/mysql_dav_provider.py concatenates the record key parsed from a request URL directly into SQL WHERE clauses. The affected _exists_record_by_primary_key, _get_field_by_primary_key, and _get_record_by_primary_key methods are part of a shipped example provider that is not enabled by default. An attacker who can access a share explicitly configured with this non-default provider can inject SQL through a normal GET request; anonymously exposed read shares permit a status-code oracle and extraction of arbitrary data reachable by the configured MySQL account. This issue is fixed in version 4.3.5.",
  "id": "CVE-2026-55509",
  "modified": "2026-09-11T03:30:27.276513554Z",
  "published": "2026-08-28T18:11:54.402Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mar10/wsgidav/blob/master/CHANGELOG.md#435--2026-06-27"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mar10/wsgidav/releases/tag/v4.3.5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55509.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mar10/wsgidav/security/advisories/GHSA-p6gw-4frg-j7jw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55509"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mar10/wsgidav/commit/6f35776c9188f130ab044ce557015d51aaa83500"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "WsgiDAV: Blind SQL injection in the MySQL provider"
}