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https://issues.apache.org/jira/browse/CXF-8734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17562906#comment-17562906
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Andriy Redko commented on CXF-8734:
-----------------------------------

Thanks for bring it up [~kdebbarman] , there was a change committed under 
[UNDERTOW-1786] which caused some SSE tests to fail, it has been addressed 
(hopefully).

> upgrade to undertow 2.2.15 or later
> -----------------------------------
>
>                 Key: CXF-8734
>                 URL: https://issues.apache.org/jira/browse/CXF-8734
>             Project: CXF
>          Issue Type: Improvement
>            Reporter: Kripal Deb Barman
>            Priority: Major
>             Fix For: 4.0.0, 3.6.0, 3.5.4, 3.4.9
>
>
> Undertow contains a flaw with how certain calls are made over HTTP2. 
> Invocation of an EJB can fail on the client side which will result in the 
> invocation-timeout being hit. Successfully exploiting this can allow an 
> attacker to trigger a denial-of-service (DoS).
> {*}Solution{*}: Fixed in 
> [*2.2.15*|https://github.com/undertow-io/undertow/releases/tag/2.2.15.Final] 
> by 
> [this|https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2]
>  commit.
> The latest stable releases are available 
> [here|https://undertow.io/downloads.html].



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