Collabora Online – Built-in CODE Server OS Command Injection Vulnerability (CVE-2026-110447) is being actively exploited, CISA warns
CISA added CVE-2026-110447 (Collabora Collabora Online – Built-in CODE Server) to its Known Exploited Vulnerabilities catalog on October 23, 2026, which means there is reliable evidence of exploitation in the wild. Collabora Collabora Online – Built-in CODE Server when used within the NextCloud platform contains an OS command injection vulnerability that allows for remote code execution when the CODE server isn't…
CISA lists this as exploited in the wild. Unpatched affected systems are exposed to active attacks now.
Treat this as an emergency.
