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https://issues.apache.org/jira/browse/SOLR-16781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17903022#comment-17903022
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ASF subversion and git services commented on SOLR-16781:
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Commit c1062d9406ca17b8500f346f0acde8370a70b96d in solr's branch
refs/heads/main from Jason Gerlowski
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=c1062d9406c ]
SOLR-16781: Remove solrconfig.xml <lib> directives (#2875)
Solr offers a number of ways for users to add JARs and resources to
their classpath, including:
* solr.xml <sharedLib> entries
* SOLR_MODULES env-var/support
* core and install-level "lib/" directories
* the package manager
* direct classpath modification
In addition to being largely redundant with the methods above,
solrconfig.xml's <lib> directive has been a pain point and source of
security concerns in the past. This commit removes it from Solr 10.
> Remove <lib> directives from Solr
> ---------------------------------
>
> Key: SOLR-16781
> URL: https://issues.apache.org/jira/browse/SOLR-16781
> Project: Solr
> Issue Type: Improvement
> Reporter: Ishan Chattopadhyaya
> Priority: Blocker
> Labels: pull-request-available
> Fix For: main (10.0)
>
> Attachments: SOLR-16781-1.patch, SOLR-16781-2.patch, SOLR-16781.patch
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> <lib> directives in solrconfig.xml used to be recommended way for including
> additional jar files to the classpath for a particular collection or
> collections.
> For context: This feature required complex handling of "trusted" vs
> "non-trusted" configsets in configset upload API to keep Solr secure (i.e. to
> stop RCE attacks for non-authentication enabled deployments). This security
> feature also broke down recently due to a bug in Schema designer (SOLR-16777).
> Supported alternatives exist that are safer:
> * user can add the jar files to Solr's classpath
> * use packages to use custom jars per collection
> In the light of these, there's no need to continue to support the <lib>
> directive going forward.
> I propose to remove the <lib> directives handling and functionality through
> this issue.
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