{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4ad4a9e14f766a2cef0ad0f8622e9afba1a3636d"
            },
            {
              "fixed": "66e8caeba3916fe2c942d5d2737ce176b6e74ea9"
            }
          ],
          "repo": "https://github.com/nextcloud/end_to_end_encryption",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-x7c7-v5r3-mg37"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-284"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/35xxx/CVE-2023-35173.json"
  },
  "details": "Nextcloud End-to-end encryption app provides all the necessary APIs to implement End-to-End encryption on the client side. By providing an invalid meta data file, an attacker can make previously dropped files inaccessible. It is recommended that the Nextcloud End-to-end encryption app is upgraded to version 1.12.4 that contains the fix.\n",
  "id": "CVE-2023-35173",
  "modified": "2026-04-01T23:08:49.993895408Z",
  "published": "2023-06-23T20:50:15.948Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1914115"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/35xxx/CVE-2023-35173.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x7c7-v5r3-mg37"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35173"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nextcloud/end_to_end_encryption/pull/435"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "End-to-End encrypted file-drops can be made inaccessible"
}