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PhpSpreadsheet: XmlScanner Bypass via ISO-2022 Escape Sequences Allows XXE and Denial of Service

cve-program · CVE-2026-108358

Published

PhpSpreadsheet

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "PHPOffice",
                    "product": "PhpSpreadsheet",
                    "versions": [
                        {
                            "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",
                            "status": "affected"
                        }
                    ]
                }
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 26 Oct 15:44 UTC · 272 of 272 readable · 270 fully read · documentation 469/469 current