{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.16.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "aaebf317a78f2413d74afd66c21a1f3143711312"
            },
            {
              "fixed": "26b6b1044b0253c5ead7d5a90eaa10ff67ac2582"
            }
          ],
          "repo": "https://github.com/cloudreve/cloudreve",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-x756-g4x3-c64m"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54562.json"
  },
  "details": "Cloudreve is a self-hosted file management and sharing system. Prior to 4.16.1, Cloudreve's remote download workflow accepts user-supplied URLs at POST /api/v4/workflow/download and passes them to the configured downloader without blocking loopback, localhost, IPv6 localhost, or redirect-to-loopback targets, allowing a non-admin user with remote download permission to fetch internal-only URLs and read the response after it is imported into the user's own files. This issue is fixed in version 4.16.1.",
  "id": "CVE-2026-54562",
  "modified": "2026-07-17T03:41:47.862681181Z",
  "published": "2026-07-15T14:37:37.176Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cloudreve/cloudreve/releases/tag/4.16.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54562.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54562"
    },
    {
      "type": "FIX",
      "url": "https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses"
}