---
id: CVE-2026-108359
title: >-
  PhpSpreadsheet ODS Reader: Unbounded number-rows-repeated → CPU & Memory
  Exhaustion (DoS)
summary: >-
  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…
severity: high
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-400
  - CWE-789
vendor: PHPOffice
product: PhpSpreadsheet
affected:
  - PhpSpreadsheet < 1.30.7
  - 'PhpSpreadsheet >= 2.0.0, < 2.1.19'
  - 'PhpSpreadsheet >= 2.2.0, < 2.4.8'
  - 'PhpSpreadsheet >= 3.3.0, < 3.10.8'
  - 'PhpSpreadsheet >= 4.0.0, < 5.10.0'
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T17:32:49.724Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-108359'
references:
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-j2w7-387v-m2rq
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-j2w7-387v-m2rq
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/299993894dce37aa3b64aa23e9a3f4bb77ab0e66
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/299993894dce37aa3b64aa23e9a3f4bb77ab0e66
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/2de29384aa11223ee08136c0e6a9e9981bc1a2eb
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/2de29384aa11223ee08136c0e6a9e9981bc1a2eb
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/980b5c294493856f1a25754f1e8a1d2185b93738
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/980b5c294493856f1a25754f1e8a1d2185b93738
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/9a0b48622ebfe93fa48cb9bc09ce57303bb07af9
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/9a0b48622ebfe93fa48cb9bc09ce57303bb07af9
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/da13f40e8760d599b0e8a296017d4b028b20e86c
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/da13f40e8760d599b0e8a296017d4b028b20e86c
  - url: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.30.7'
    label: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.30.7'
  - url: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.1.19'
    label: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.1.19'
  - url: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.4.8'
    label: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.4.8'
  - url: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/3.10.8'
    label: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/3.10.8'
  - url: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/5.10.0'
    label: 'https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/5.10.0'
tags:
  - cve.org
ingestedAt: '2026-10-22T22:00:50.355Z'
---

## Overview

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

- `PhpSpreadsheet < 1.30.7`
- `PhpSpreadsheet >= 2.0.0, < 2.1.19`
- `PhpSpreadsheet >= 2.2.0, < 2.4.8`
- `PhpSpreadsheet >= 3.3.0, < 3.10.8`
- `PhpSpreadsheet >= 4.0.0, < 5.10.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.