diff --git a/core/Command/Db/ConvertType.php b/core/Command/Db/ConvertType.php
index db618e938c007..4d95ee50c4e29 100644
--- a/core/Command/Db/ConvertType.php
+++ b/core/Command/Db/ConvertType.php
@@ -177,6 +177,13 @@ protected function readPassword(InputInterface $input, OutputInterface $output)
 	}
 
 	protected function execute(InputInterface $input, OutputInterface $output): int {
+		// WARNING:
+		// Leave in place until #45257 is addressed to prevent data loss (hopefully in time for the next maintenance release)
+		//
+		throw new \InvalidArgumentException(
+			'This command is temporarily disabled (until the next maintenance release).'
+		);
+
 		$this->validateInput($input, $output);
 		$this->readPassword($input, $output);