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https://issues.apache.org/jira/browse/LOG4J2-3208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17462051#comment-17462051
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Remko Popma commented on LOG4J2-3208:
-------------------------------------

[~klimchuk] the security page has been updated to clarify "Otherwise, in any 
release other than 2.16.0, you may remove the JndiLookup class".
Hopefully this will help prevent this for others in the future.

> Disable JNDI by default
> -----------------------
>
>                 Key: LOG4J2-3208
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-3208
>             Project: Log4j 2
>          Issue Type: Story
>          Components: Core
>    Affects Versions: 2.15.0
>            Reporter: Ralph Goers
>            Priority: Major
>             Fix For: 2.16.0
>
>
> Dealing with CVE-2021-44228 has shown the JNDI has significant security 
> issues. While we have mitigated what we are aware of it would be safer for 
> users to completely disable it by default, especially since the large 
> majority are unlikely to be using it. Those who are will need to specify 
> -Dlog4j2.enableJndi=true or the environment variable form of it to use any 
> JNDI components.



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