The vulnerability of the OLERead::read() function in the src/PhpSpreadsheet/Shared/OLERead.php script of the PhpSpreadsheet library allows a hacker to trigger a service failure.

The vulnerability of the OLERead::read function in the src/PhpSpreadsheet/Shared/OLERead.php script of the PhpSpreadsheet library is related to the execution of a loop with an unavailable exit condition. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...