CVE-2026-110447
CVE-2026-110447
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 9.2 · Critical · EPSS 1.2% · In KEV · Public exploit · Fix available
- Published
- Updated
Affected products and versions
collabora online - built-in code server
- Versions
- ≥ 0, < 26.4.303: Affected (semver)
Update to 26.4.303