Cloudreve before 4.16.1 Path Traversal via Remote Download

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-101051",
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "dateUpdated": "2026-09-27T17:02:37.358Z",
    "dateReserved": "2026-09-27T15:48:49.472Z",
    "datePublished": "2026-09-27T17:02:37.358Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck",
        "dateUpdated": "2026-09-27T17:02:37.358Z"
      },
      "datePublic": "2026-06-13T00:00:00.000Z",
      "title": "Cloudreve before 4.16.1 Path Traversal via Remote Download",
      "descriptions": [
        {
          "lang": "en",
          "value": "Cloudreve before 4.16.1 fails to properly sanitize file paths returned by remote downloaders, allowing authenticated users to create files outside the selected destination directory. Attackers can exploit path traversal sequences in downloader metadata to write files to unexpected locations within accessible namespaces."
        }
      ],
      "affected": [
        {
          "vendor": "cloudreve",
          "product": "cloudreve",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.16.1"
            },
            {
              "version": "4.16.1",
              "status": "unaffected",
              "versionType": "semver"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
              "cweId": "CWE-22",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/cloudreve/cloudreve/security/advisories/GHSA-w8j7-39hp-8x59",
          "name": "GitHub Security Advisory (GHSA-w8j7-39hp-8x59)",
          "tags": [
            "vendor-advisory"
          ]
        },
        {
          "url": "https://www.vulncheck.com/advisories/cloudreve-before-4.16.1-path-traversal-via-remote-download",
          "name": "VulnCheck Advisory: Cloudreve before 4.16.1 Path Traversal via Remote Download",
          "tags": [
            "third-party-advisory"
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS"
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "attackVector": "NETWORK",
            "attackComplexity": "HIGH",
            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "availabilityImpact": "NONE",
            "baseScore": 3.1,
            "baseSeverity": "LOW"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "jinhao-huang",
          "type": "reporter"
        }
      ]
    }
  }
}