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https://issues.apache.org/jira/browse/HTTPCORE-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17324427#comment-17324427
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ASF subversion and git services commented on HTTPCORE-673:
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Commit 678baf24ad102a9178dc27a90cbea5ea0a94f325 in httpcomponents-core's branch
refs/heads/5.1.x from Oleg Kalnichevski
[ https://gitbox.apache.org/repos/asf?p=httpcomponents-core.git;h=678baf2 ]
HTTPCORE-673: fixes incorrect handling of unknown parameters in HTTP/2 SETTINGS
frame
> AbstractH2StreamMultiplexer only partially consumes unknown settings
> --------------------------------------------------------------------
>
> Key: HTTPCORE-673
> URL: https://issues.apache.org/jira/browse/HTTPCORE-673
> Project: HttpComponents HttpCore
> Issue Type: Bug
> Components: HttpCore
> Affects Versions: 5.1
> Reporter: Andy Wilkinson
> Priority: Major
> Fix For: 5.0.4, 5.1.1, 5.2-alpha1
>
>
> I originally [reported|https://github.com/eclipse/jetty.project/issues/6164]
> this to the Jetty project but they have identified that the problem is in
> HttpCore's {{AbstractH2StreamMultiplexer}}. Jetty 10 has added support for
> {{SETTINGS_ENABLE_CONNECT_PROTOCOL}}. When consuming the settings frame,
> {{AbstractH2StreamMultiplexer}} consumes the code but, as it has no
> {{H2Param}} for it, it does not consume the value. This partial consumption
> results in an failure later on.
> The problem can be reproduced using [this sample
> project|https://github.com/wilkinsona/jetty-h2c-problem].
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