{"id":"CVE-2026-110447","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-110447","summary":null,"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.","published":"2026-10-14T02:27:42.315Z","modified":"2026-10-21T02:57:11.664751416Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:57:11.664751416Z"}}