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-2025-66…
CVSS 4.0CRITICAL 9.2·Network·No auth·No interaction·EPSS 0.73307·Published 2026-10-14·Fixed in 26.4.303CWE-78