Was October 23, 2026 a WordPress security release?
NO
No — the last WordPress security release was 7.1.3 on October 7; today's urgent fix is a PHP patch.
Why
- WordPress 7.1.3 shipped Oct 7 with seven security fixes
- PHP 8.5.12, 8.4.27, 8.3.36, 8.2.35 released Oct 21
- WordPress.org: no WordPress update required for the PHP flaw