{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "26.4.303"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e0221971cc3e0cf39db4672bef54ad60bab90486"
            }
          ],
          "repo": "https://github.com/collaboraonline/richdocumentscode",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110447.json"
  },
  "details": "Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerability than CVE-2025-66208. This is an OS command injection in proxy.php when the CODE server isn't running (e.g., the product was recently restarted). The vulnerability is not present in standalone Collabora Online servers; only this deployment with CODE Server is affected.",
  "id": "CVE-2026-110447",
  "modified": "2026-10-16T02:30:34.460806678Z",
  "published": "2026-10-14T02:27:42.315Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://apps.nextcloud.com"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110447.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110447"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/CollaboraOnline/richdocumentscode/issues/354"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/CollaboraOnline/richdocumentscode"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ]
}