CVE-2026-45034 PhpSpreadsheet: File::prohibitWrappers bypass

PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.5, CVE-2026-34084 was patched by the helper File::prohibitWrappers. The helper calls parseurl$filename, PHPURLSCHEME and then checks isstring$scheme && strlen$scheme 1 to reject stream wrappers such as...