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  1. ,
    via Stack Overflow by Maciej Marczuk

    This error is caused by malformed HTTP request. You are trying to access unsecured page through https.

  2. ,
    via cyber4.org by Unknown author

    Some bots are sending malformed HTTP requests to your site. Try to find their IP addresses in the access logs and ask them to fix the bots or blacklist them.

Solutions on the web

via Oracle Community by user1947034, 1 year ago
Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986
via Stack Overflow by ashishjmeshram
, 1 year ago
Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986
via Stack Overflow by Noah Kaufman
, 11 months ago
Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986
via GitHub by nathandunn
, 3 months ago
Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986
via GitHub by rorydavidson
, 4 months ago
Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986
via GitHub by fqtyfz
, 1 year ago
Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986
java.lang.IllegalArgumentException: Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986 at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:460) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:383) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)