Drupal has published a security advisory, highlighting vulnerabilities in multiple versions on 12th August 2021. It is recommended that you take the necessary precautions by ensuring your products are always updated.
For more information on these Drupal updates, you follow these URLs:
https://www.drupal.org/project/drupal/releases/8.9.18
https://www.drupal.org/project/drupal/releases/9.1.12
https://www.drupal.org/project/drupal/releases/9.2.4
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF Download: Drupal Releases Security Updates.pdf
References
https://us-cert.cisa.gov/ncas/current-activity/2021/08/12/drupal-releases-security-updates