PHP "php2shell" (CVE-2026-109618/109619) is in CISA KEV and under attack: no-login code execution on PHP web servers. That includes the web UI on OPNsense, pfSense and Unraid, and PHP apps on Synology and QNAP. Update to PHP 8.5.12, 8.4.27, 8.3.36 or 8.2.35 (or the vendor update), then restart PHP.
Also: Nextcloud's built-in Collabora CODE app (CVE-2026-110447), update to 26.4.303.