Drupal has issued an alert stating that it intends to release a «core security release» for all supported branches on May 20, 2026, from 5-9 p.m. UTC.

«The Drupal Security Team urges you to reserve time for core updates at that time because exploits might be developed within hours or days,» the maintainers of the PHP-based content management system (CMS) said.

«Not all configurations are