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Date: Tue, 22 Oct 2019 23:00:45 +0200
From: Dominik Stadler <>
Subject: CVE-2019-12415 - XML External Entity (XXE) Processing in Apache POI

Severity: Important

The Apache Software Foundation

Versions Affected:
Apache POI up to version 4.1.0

When using the tool XSSFExportToXml to convert user-provided Microsoft
Excel documents, a specially crafted document can allow an attacker to
read files from the local filesystem or from internal network resources
via XML External Entity (XXE) Processing.

Apache POI 4.1.0 and before: users who do not use the tool XSSFExportToXml
are not affected. affected users are advised to update to Apache POI 4.1.1
which fixes this vulnerability.

This issue was discovered by Artem Smotrakov from SAP


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