PhpSpreadsheet has SSRF/RCE in IOFactory::load when $filename is user controlled
Packagist phpoffice/phpspreadsheet · Upgrade to 5.6.0, 3.10.4, 2.4.4 or 2 more by release line · >= 4.0.0, <= 5.5.0; >= 3.3.0, <= 3.10.3; >= 2.2.0, <= 2.4.3; >= 2.0.0, <= 2.1.14; <= 1.30.2 · CVE-2026-34084 · GHSA-q4q6-r8wh-5cgh