Stuart Douglas created WFLY-10051:
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Summary: Undertow does not allow UTF-8 characters in URLs
Key: WFLY-10051
URL:
https://issues.jboss.org/browse/WFLY-10051
Project: WildFly
Issue Type: Bug
Components: Web (Undertow)
Reporter: Stuart Douglas
Assignee: Stuart Douglas
We receive a 400 response code if using UTF-8 characters for a request, due to this
check:
https://github.com/undertow-io/undertow/blob/master/core/src/main/java/io...
This was introduced in UNDERTOW-1101. We want to understand why it is necessary for the
CVE/CWE regarding request smuggling, but this ticket is to at least make this check
optional as it goes against the URL_ENCODING UndertowOption when set to UTF-8 (default).
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