{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.63.19"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "328f629181888760f3c8b3ff9f3b5bec50f4e54f"
            },
            {
              "fixed": "b7dc392838f11d188f0bc0f2a1a99fad3f7dca03"
            }
          ],
          "repo": "https://github.com/filebrowser/filebrowser",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7whw-q6gh-xr59"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72834.json"
  },
  "details": "filebrowser before 2.63.19 contains a permission bypass in the /api/resources endpoint. The checksum (?checksum=) branch of resourceGetHandler reads the entire file to compute a digest and returns it without performing a Perm.Download check (unlike the sibling raw, preview, and subtitle paths). As a result, an authenticated user provisioned with Perm.Download=false can obtain a content-hash oracle for any same-scope file (md5/sha1/sha256/sha512), enabling confirmation of known/guessed content, change detection, and offline brute-force of low-entropy files. This is an incomplete fix of CVE-2026-35606; it bypasses only the Download permission and does not defeat scope/path authorization.",
  "id": "CVE-2026-72834",
  "modified": "2026-09-10T03:30:56.059528786Z",
  "published": "2026-08-14T11:35:40.049Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72834.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7whw-q6gh-xr59"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72834"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/filebrowser-before-permission-bypass-via-checksum"
    },
    {
      "type": "FIX",
      "url": "https://github.com/filebrowser/filebrowser/commit/b7dc392838f11d188f0bc0f2a1a99fad3f7dca03"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "filebrowser before 2.63.19 Permission Bypass via checksum"
}