{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "4.17.0"
              },
              {
                "last_affected": "4.17.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "d4a145c3ac68f08b9071dec0f2ac025c6dc7362d"
            },
            {
              "fixed": "7e1289d552794bdbeb551be78456115c87dcb3da"
            },
            {
              "fixed": "d4a145c3ac68f08b9071dec0f2ac025c6dc7362d"
            }
          ],
          "repo": "https://github.com/cloudreve/cloudreve",
          "type": "GIT"
        }
      ],
      "versions": [
        "4.17.0"
      ]
    }
  ],
  "aliases": [
    "GHSA-8r7f-r8hj-r3rv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-200",
      "CWE-359"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55496.json"
  },
  "details": "Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, GET /api/v4/user/search calls SearchActive without adding a StatusActive predicate and serializes matches at RedactLevelUser, allowing any logged-in user to enumerate email addresses and profile metadata for inactive or banned accounts. The service calls userClient.SearchActive, but despite its name that method filters only by email/nickname keyword and never adds a StatusActive predicate — while the sibling lookups GetActiveByID and GetActiveByDavAccount, defined a few lines above it, do. Search hits are serialized at RedactLevelUser, which includes the email address. This issue is fixed in version 4.17.0.",
  "id": "CVE-2026-55496",
  "modified": "2026-08-02T03:31:49.035357875Z",
  "published": "2026-07-31T03:23:33.099Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cloudreve/cloudreve/releases/tag/4.17.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55496.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/cloudreve/cloudreve/security/advisories/GHSA-8r7f-r8hj-r3rv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55496"
    },
    {
      "type": "FIX",
      "url": "https://github.com/cloudreve/cloudreve/commit/7e1289d552794bdbeb551be78456115c87dcb3da"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cloudreve: Inactive/banned account emails leaked via GET /api/v4/user/search because SearchActive() omits the active-status predicate"
}