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  1. JBoss Enterprise Application Platform
  2. JBEAP-26972

(7.4.z) UNDERTOW-2374 - At Http2ReceiveListener.checkRequestHeaders do not check path chars when unescaped characters are allowed

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      At that method, there is a block that iterates through the path

      // verify content of request pseudo-headers. Each header should only have a single value.
if (headers.contains(PATH)) {
    for (byte b: headers.get(PATH).getFirst().getBytes(ISO_8859_1)) {
        if (!allowUnescapedCharactersInUrl && !HttpRequestParser.isTargetCharacterAllowed((char)b)){
            return false;
        }
    }
}

      Iterating is unnecessary when allowUnescapedCharactersInUrl is true.

            rhn-engineering-lgao Lin Gao
            rhn-engineering-lgao Lin Gao
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