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PhpSpreadsheet CVE-2026-34084 RCE via parse_url bypass in Phar deserialization

github.com 2026-06-27 查看中文 →
Security Advisory CVE-2026-34084 Critical PHPOffice
Affected:
  • PhpSpreadsheet <=1.30.4
Fixed in:
  • PhpSpreadsheet >=1.30.5
Referenced CVEs: CVE-2026-45034
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