---
id: CVE-2026-108360
title: >-
  PhpSpreadsheet: SSRF whitelist bypass via unre-validated HTTP redirect in
  Drawing::setPath external image loading
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,
  Worksheet\Drawing::setPath validates only the initial external-image URL with
  setIsWhitelisted when setAl…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-863
  - CWE-918
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: '2026-10-22T17:26:59.148Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-108360'
references:
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-2phh-27fw-q4gc
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-2phh-27fw-q4gc
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/299993894dce37aa3b64aa23e9a3f4bb77ab0e66
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/299993894dce37aa3b64aa23e9a3f4bb77ab0e66
  - url: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/94590951d76a250a5fc1ecf69a0b3f7439a9af49
    label: >-
      https://github.com/PHPOffice/PhpSpreadsheet/commit/94590951d76a250a5fc1ecf69a0b3f7439a9af49
  - 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: '2026-10-22T22:00:50.353Z'
---

## 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, Worksheet\Drawing::setPath validates only the initial external-image URL with setIsWhitelisted when setAllowExternalImages is enabled. The HTTP stream context permits PHP to follow a redirect without applying the callback to the redirected URL, so a permitted image host can redirect the server to an internal address and cause a blind GET request. The response body is not returned to the attacker because the reader validates the downloaded content as an image and removes the temporary file, but internal GET-driven endpoints, network reachability, and cloud metadata endpoints may be reached. 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.