Access Bypass vulnerability in Drupal Core allows for an attacker to leverage the way that HTML is rendered for affected forms in order to exploit the vulnerability. This issue affects: Drupal Core 8.8.x versions prior to 8.8.10; 8.9.x versions prior to 8.9.6; 9.0.x versions prior to 9.0.6.
https://github.com/advisories/GHSA-m6q5-wv4x-fv6h