CVE-2026-108359
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
77/100
Published: 2026-10-22
Modified: 2026-10-29
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
X
AT:
None
VC:
None
VI:
None
VA:
High
Description
PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0, Ods::processTableRow in src/PhpSpreadsheet/Reader/Ods.php accepts an unbounded table:number-rows-repeated attribute from an ODS table row. When the row contains a value, the reader materializes a cell for every repetition without checking the spreadsheet row limit, so a small attacker-controlled ODS file can consume substantial CPU and memory and terminate the PHP worker. Column repetition is separately bounded and is not part of this vulnerability. This issue is fixed in versions 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0.
Affected Software (5)
| Vendor | Product | Version |
|---|---|---|
| PHPOffice | PhpSpreadsheet | < 1.30.7 |
| PHPOffice | PhpSpreadsheet | >= 2.0.0, < 2.1.19 |
| PHPOffice | PhpSpreadsheet | >= 2.2.0, < 2.4.8 |
| PHPOffice | PhpSpreadsheet | >= 3.3.0, < 3.10.8 |
| PHPOffice | PhpSpreadsheet | >= 4.0.0, < 5.10.0 |