{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.16.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f7114ca2a4e624238dda0d097a07ad6b05c11bb6"
            },
            {
              "fixed": "85ab7e28083b91b21437ea3a63ed99a124b65929"
            }
          ],
          "repo": "https://github.com/error311/filerise",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-c4g2-8fg6-5xrr"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-434"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57491.json"
  },
  "details": "FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, FileRise archive extraction does not apply UploadNamePolicy::isAllowedForWrite() before ZipArchive::extractTo() writes entries into the destination directory. An authenticated user with upload and extract permissions can place a blocked extension such as a PHP-family file inside a ZIP and cause it to be written to disk even when normal uploads reject that filename. Post-extraction metadata pruning does not remove the blocked file, so deployments that execute uploaded content may permit code execution. This issue is fixed in version 3.16.0.",
  "id": "CVE-2026-57491",
  "modified": "2026-10-16T02:30:46.109255016Z",
  "published": "2026-10-14T20:17:04.140Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/error311/FileRise/releases/tag/v3.16.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57491.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/error311/FileRise/security/advisories/GHSA-c4g2-8fg6-5xrr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57491"
    },
    {
      "type": "FIX",
      "url": "https://github.com/error311/FileRise/commit/f7114ca2a4e624238dda0d097a07ad6b05c11bb6"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "FileRise: ZIP extraction writes blocked file extensions to disk, bypassing the upload blocklist"
}