{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.2.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "651da18da4c647d96648d4bb64462baac1c37e04"
            },
            {
              "fixed": "84ecda35aae2bd0020474086e6ddfd3aa2340679"
            }
          ],
          "repo": "https://github.com/openlistteam/openlist",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-95cv-r8x4-vh75"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73509.json"
  },
  "details": "OpenList a file list program that supports multiple storage. Prior to 4.2.4, the authenticated /api/fs/batch_rename handler in server/handles/fsbatch.go authorizes only the source directory produced by user.JoinPath(req.SrcDir) and validates renameObject.NewName with checkRelativePath, but does not validate attacker-controlled renameObject.SrcName, supplied as src_name, before concatenating it with the authorized path and passing the result to fs.Rename. A user with rename permission can use traversal segments in src_name to make path normalization select a file outside the authorized directory and configured base path, resulting in cross-user file integrity loss, limited availability impact, and file-existence disclosure through success or error responses. This issue is fixed in version 4.2.4.",
  "id": "CVE-2026-73509",
  "modified": "2026-08-15T11:31:05.127325265Z",
  "published": "2026-08-13T14:31:05.426Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/OpenListTeam/OpenList/releases/tag/v4.2.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73509.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-95cv-r8x4-vh75"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73509"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OpenListTeam/OpenList/commit/651da18da4c647d96648d4bb64462baac1c37e04"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenList: Authenticated users can rename files outside their base path via batch rename `src_name` traversal"
}