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https://issues.apache.org/jira/browse/LUCENE-8291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16476931#comment-16476931
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Uwe Schindler commented on LUCENE-8291:
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[~mkhludnev] fixed this a minute ago:
http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/09a789f5 (master) and
http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/897f6b37 (7.x)
> Possible security issue when parsing XML documents containing external entity
> references
> ----------------------------------------------------------------------------------------
>
> Key: LUCENE-8291
> URL: https://issues.apache.org/jira/browse/LUCENE-8291
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/queryparser
> Affects Versions: 7.2.1
> Reporter: Hendrik Saly
> Assignee: Uwe Schindler
> Priority: Major
> Fix For: 7.4, master (8.0)
>
> Attachments: LUCENE-8291.patch
>
>
> It appears that in QueryTemplateManager.java lines 149 and 198 and in
> DOMUtils.java line 204 XML is parsed without disabling external entity
> references (XXE). This is described in
> [http://cwe.mitre.org/data/definitions/611.html] and possible mitigations are
> listed here:
> [https://www.owasp.org/index.php/XML_External_Entity_(XXE)_Prevention_Cheat_Sheet]
> All recent versions of lucene are affected.
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