A visit to install.php can cause cached data to become corrupted. This could cause a site to be impaired until caches are rebuilt.
install.php
{ "constraint": ">= 8.0.0 <8.7.11" }
{ "constraint": ">= 8.8.0 <8.8.1" }
">= 8.0.0 <8.7.11 || >= 8.8.0 <8.8.1"
"https://github.com/DrupalSecurityTeam/drupal-advisory-database/blob/main/advisories/core/DRUPAL-CORE-2019-009.json"