Yüksek CVSS 7.5 PoC var
CVE-2026-40902: Phpspreadsheet: güvenlik açığı
Açıklama (NVD)
PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0, the XLSX reader's ColumnAndRowAttributes::readRowAttributes() method reads row numbers from XML attributes without validating them against the spreadsheet maximum row limit (AddressRange::MAX_ROW = 1,048,576). An attacker can craft a minimal XLSX file (~1.6KB) containing a <row r="999999999"/> element that inflates cachedHighestRow to 999,999,999, causing any subsequent row iteration to attempt ~1 billion loop cycles and exhaust CPU resources. This vulnerability is fixed in 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0.
Özet bilgiler
- Ürün
- Phpoffice Phpspreadsheet
- CVSS v3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- %0,40 (yüzdelik 34)
- CWE
- CWE-770
- Yama
- Geçici çözüm
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| phpoffice-phpspreadsheet | — | — | 1.30.4 |
| phpoffice-phpspreadsheet | 2.0.0 | — | 2.1.16 |
| phpoffice-phpspreadsheet | 2.2.0 | — | 2.4.5 |
| phpoffice-phpspreadsheet | 3.3.0 | — | 3.10.5 |
| phpoffice-phpspreadsheet | 4.0.0 | — | 5.7.0 |