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CVE-2026-45034

1 advisory.

Packagist/phpoffice/phpspreadsheet CVE-2026-45034: critical

PHPSpreadsheet has a patch bypass for CVE-2026-34084

Action: Upgrade phpoffice/phpspreadsheet to 1.30.5 or later.

composer require phpoffice/phpspreadsheet:1.30.5

Affected

introducedfixedlast affected
01.30.5-

Fixed versions

1.30.5

Sources

CVE-2026-45034 · published · modified · JSON