CVE-2026-59933 | PHPOffice PhpSpreadsheet memory allocation

A vulnerability, which was classified as problematic, has been found in PHPOffice PhpSpreadsheet. Affected is an unknown function. Performing a manipulation results in uncontrolled memory allocation.

This vulnerability is cataloged as CVE-2026-59933. The attack must originate from the local network. There is no exploit available.

It is advisable to upgrade the affected component.VulDB Recent EntriesRead More