CVE-2026-110447
Collabora Online95/100
confirmed exploited
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.
Listed in VulnCheck KEV (confirmed exploited in the wild) · EPSS 0.012 (probability of exploitation) · CVSS base 9.2 · 1 public PoC/exploit reference(s) available
Public PoC / Exploit1
Defensive review only — these references demonstrate exploitability.
References2
Mentions 2