PhpSpreadsheet ODS Reader: Unbounded number-rows-repeated → CPU & Memory Exhaustion (DoS)
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.
CVE-2026-108359
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-108359
PhpSpreadsheet
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "PHPOffice",
"product": "PhpSpreadsheet",
"versions": [
{
"status": "affected",
"version": "< 1.30.7"
},
{
"status": "affected",
"version": ">= 2.0.0, < 2.1.19"
},
{
"status": "affected",
"version": ">= 2.2.0, < 2.4.8"
},
{
"status": "affected",
"version": ">= 3.3.0, < 3.10.8"
},
{
"status": "affected",
"version": ">= 4.0.0, < 5.10.0"
}
]
}
]- Related CVEs
- CVE-2026-108359
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #50487 · Revision 1
- Added to Heist Feed
- Publisher date