PhpSpreadsheet OLE Sector-Chain Self-Loop Memory Exhaustion
Security Advisory
High
PhpSpreadsheet
Affected:
- PhpSpreadsheet >= 4.0.0 <= 5.8.0
- PhpSpreadsheet >= 3.3.0 <= 3.10.6
- PhpSpreadsheet >= 2.2.0 <= 2.4.6
- PhpSpreadsheet >= 2.0.0 <= 2.1.17
- PhpSpreadsheet <= 1.30.5
Fixed in:
- 5.8.1
- 3.10.7
- 2.4.7
- 2.1.18
- 1.30.6
Referenced CVEs:
CVE-2026-59933 · 7.5
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