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https://issues.apache.org/jira/browse/SOLR-14561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17283071#comment-17283071
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Jan Høydahl commented on SOLR-14561:
------------------------------------

Ah, I see - you'd like to allow path traversal explicitly. Please file a new 
Jira suggesting that, and include a PR if you can. I suppose we could make it 
so that {{allowPaths=*}} is checked early and means allow anything, like 
before? We could also add a few explicit keywords such as {{allowPaths=..}} and 
{{allowPaths=_UNC_}} which would allow parent traversal and UNC paths 
respectively?

> Validate parameters to CoreAdminAPI
> -----------------------------------
>
>                 Key: SOLR-14561
>                 URL: https://issues.apache.org/jira/browse/SOLR-14561
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Jan Høydahl
>            Assignee: Jan Høydahl
>            Priority: Major
>             Fix For: 8.6
>
>          Time Spent: 4h 40m
>  Remaining Estimate: 0h
>
> CoreAdminAPI does not validate parameter input. We should limit what users 
> can specify for at least {{instanceDir and dataDir}} params, perhaps restrict 
> them to be relative to SOLR_HOME or SOLR_DATA_HOME.



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