How to enable encoded characters in EAP 7 (Undertow) ?

Solution Verified - Updated -

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP)
    • 7.x

Issue

  • How to allow EAP to decode if request comes with encoded characters e.g. %2F ?

Resolution

  • EAP 7 by default does not allow decoding encoded character e.g. %2F in the request, it can be enabled executing the below cli commands
/subsystem=undertow/server=default-server/http-listener=default:write-attribute(name=allow-encoded-slash,value=true)

For more information about other attribute of undertow listener

Root Cause

  • EAP does not allow raw (eg. "/") characters within the request, the code must be updated to encode the characters and allow those in EAP.

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